See fuck, bugger, bang, or just type in your own witty synonym.
Could also be a thing, as there is a type of fastener also called a screw. Its sort of like a nail with threads.

Australian slang for a Prison Guard.

The propeller or prop of a water craft that moves water by rotating canted blades. The nature of a screw is such that its noise can be heard by sonar if the vessel is travelling fast enough.

screen scraping = S = screwage

screw n.

[MIT] A lose, usually in software. Especially used for user-visible misbehavior caused by a bug or misfeature. This use has become quite widespread outside MIT.

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.

A screw is a threaded fastener whose major diameter, which is to say its outer thread size, is less than one-quarter inch (SAE) or for metric screws, 6 millimeters. Anything that size or larger is a bolt. At the top they feature a head which serves both to hold down material (their primary purpose being to fasten two or more items together)

Screws are offered in any size (below 1/4" that is), pitch, and material, and with almost any kind of head you can imagine - there are round headed screws with indentations for flat-blade, philips, torx, and other types of screwdriver, cap headed screws which usually have hex or torx depressions, hex-headed screws which look like miniature bolts, taper headed screws which are designed to screw down into conical depressions and lie flush with the surface they pass through, and more.

While SAE bolts are measured by their major diameter in inches or fractions thereof, SAE screws are based on several screw sizes, measure in numbers from zero to twelve, excluding seven, nine, and eleven. Each screw also has a corresponding fine thread pitch, and a coarse thread pitch measured in threads per inch - except for #0, which has only a fine pitch. These threads are known as "national fine" and "national coarse" thread pitches.

0 - .060 in., 80 t.p.i. fine
1 - .073 in., 72 t.p.i. fine, 64 t.p.i coarse
2 - .086 in., 64 t.p.i. fine, 56 t.p.i coarse
3 - .099 in., 56 t.p.i. fine, 48 t.p.i coarse
4 - .112 in., 48 t.p.i. fine, 40 t.p.i coarse
5 - .125 in. (1/8"), 44 t.p.i. fine, 40 t.p.i coarse
6 - .138 in., 40t.p.i. fine, 32t.p.i coarse
7 - No such size
8 - .164 in., 36t.p.i. fine, 32 t.p.i coarse
9 - No such size
10 - .190 in., 32 t.p.i. fine, 24 t.p.i coarse
11 - No such size
12 - .216 in., 28 t.p.i. fine, 24 t.p.i coarse

Metric screws are measured more simply, and their sizes specified with three numbers; major diameter in mm, distance between threads in mm, and length in mm. Therefore a 5mm screw with a thread every 0.8mm (standard metric pitch for that size) two centimeters long would be shown as M5x0.8x20, with the M naturally denoting "metric".

You typically will not see a screw smaller than 4mm, which has a 0.7mm space between threads. 6mm screws ordinarily have 1mm between threads.

These sizes only really apply to machine screws however. A wood screw will have a thin thread with more space than thread. Where the american standard thread has a 60 degree thread form with as little flat area between threads as possible, wood screws maximize flat area due simply to the nature of wood. They tend to have few threads per inch. Not all wood screws have the same pitch, either; A wood screw meant for applying a significant amount of force might have as many as 12 or 14 threads per inch, while a screw meant for decking might have as few as six. Drywall screws are similar to wood screws, but typically have a smoother finish and a head which has a taper in the shape of an arc to avoid cracking the plaster.

Screws are a combination of two simple machines, the wheel and the inclined plane. An inclined plane is a lever with an infinite fulcrum (the fulcrum corresponds with the surface of the plane) and a wheel is an infinite series of levers rotating around a central fulcrum, thus the screw can be seen as an assortment of levers. Even the force applied to a screw is measured in torque, which is a measurement of force over distance, using a lever.

Screw (?), n. [OE. scrue, OF. escroue, escroe, female screw, F. 'ecrou, L. scrobis a ditch, trench, in LL., the hole made by swine in rooting; cf. D. schroef a screw, G. schraube, Icel. skrfa.]


A cylinder, or a cylindrical perforation, having a continuous rib, called the thread, winding round it spirally at a constant inclination, so as to leave a continuous spiral groove, between one turn and the next, -- used chiefly for producing, when revolved, motion or pressure in the direction of its axis, by the sliding of the threads of the cylinder in the grooves between the threads of the perforation adapted to it, the former being distinguished as the external, or male screw, or, more usually the screw; the latter as the internal, or female screw, or, more usually, the nut.

⇒ The screw, as a mechanical power, is a modification of the inclined plane, and may be regarded as a right-angled triangle wrapped round a cylinder, the hypotenuse of the marking the spiral thread of the screw, its base equaling the circumference of the cylinder, and its height the pitch of the thread.


Specifically, a kind of nail with a spiral thread and a head with a nick to receive the end of the screw-driver. Screws are much used to hold together pieces of wood or to fasten something; -- called also wood screws, and screw nails. See also Screw bolt, below.


Anything shaped or acting like a screw; esp., a form of wheel for propelling steam vessels. It is placed at the stern, and furnished with blades having helicoidal surfaces to act against the water in the manner of a screw. See Screw propeller, below.


A steam vesel propelled by a screw instead of wheels; a screw steamer; a propeller.


An extortioner; a sharp bargainer; a skinflint; a niggard.



An instructor who examines with great or unnecessary severity; also, a searching or strict examination of a student by an instructor.

[Cant, American Colleges]


A small packet of tobacco.




An unsound or worn-out horse, useful as a hack, and commonly of good appearance.

Ld. Lytton.

9. Math.

A straight line in space with which a definite linear magnitude termed the pitch is associated (cf. 5th Pitch, 10 (b)). It is used to express the displacement of a rigid body, which may always be made to consist of a rotation about an axis combined with a translation parallel to that axis.

10. Zool.

An amphipod crustacean; as, the skeleton screw (Caprella). See Sand screw, under Sand.

Archimedes screw, Compound screw, Foot screw, etc. See under Archimedes, Compound, Foot, etc. -- A screw loose, something out of order, so that work is not done smoothly; as, there is a screw loose somewhere. H. Martineau.

-- Endless, ∨ perpetual screw, a screw used to give motion to a toothed wheel by the action of its threads between the teeth of the wheel; -- called also a worm. -- Lag screw. See under Lag. -- Micrometer screw, a screw with fine threads, used for the measurement of very small spaces. -- Right and left screw, a screw having threads upon the opposite ends which wind in opposite directions. -- Screw alley. See Shaft alley, under Shaft. -- Screw bean. Bot. (a) The curious spirally coiled pod of a leguminous tree (Prosopis pubescens) growing from Texas to California. It is used for fodder, and ground into meal by the Indians. (b) The tree itself. Its heavy hard wood is used for fuel, for fencing, and for railroad ties. -- Screw bolt, a bolt having a screw thread on its shank, in distinction from a key bolt. See 1st Bolt, 3. -- Screw box, a device, resembling a die, for cutting the thread on a wooden screw. -- Screw dock. See under Dock. -- Screw engine, a marine engine for driving a screw propeller. -- Screw gear. See Spiral gear, under Spiral. -- Screw jack. Same as Jackscrew. -- Screw key, a wrench for turming a screw or nut; a spanner wrench. -- Screw machine. (a) One of a series of machines employed in the manufacture of wood screws. (b) A machine tool resembling a lathe, having a number of cutting tools that can be caused to act on the work successively, for making screws and other turned pieces from metal rods. -- Screw pine Bot., any plant of the endogenous genus Pandanus, of which there are about fifty species, natives of tropical lands from Africa to Polynesia; -- named from the spiral arrangement of the pineapple-like leaves. -- Screw plate, a device for cutting threads on small screws, consisting of a thin steel plate having a series of perforations with internal screws forming dies. -- Screw press, a press in which pressure is exerted by means of a screw. -- Screw propeller, a screw or spiral bladed wheel, used in the propulsion of steam vessels; also, a steam vessel propelled by a screw. -- Screw shell Zool., a long, slender, spiral gastropod shell, especially of the genus Turritella and allied genera. See Turritella. -- Screw steamer, a steamship propelled by a screw. -- Screw thread, the spiral which forms a screw. -- Screw stone Paleon., the fossil stem of an encrinite. -- Screw tree Bot., any plant of the genus Helicteres, consisting of about thirty species of tropical shrubs, with simple leaves and spirally twisted, five-celled capsules; -- also called twisted-horn, and twisty. -- Screw valve, a stop valve which is opened or closed by a screw. -- Screw worm Zool., the larva of an American fly (Compsomyia macellaria), allied to the blowflies, which sometimes deposits its eggs in the nostrils, or about wounds, in man and other animals, with fatal results. -- Screw wrench. (a) A wrench for turning a screw. (b) A wrench with an adjustable jaw that is moved by a screw. -- To put the screw, ∨ screws, [on, to use pressure upon, as for the purpose of extortion; to coerce. -- To put under the screwscrews, to subject to presure; to force. -- Wood screw, a metal screw with a sharp thread of coarse pitch, adapted to holding fast in wood. See Illust. of Wood screw, under Wood.


© Webster 1913.

Screw (?), v. t. [imp. & p. p. Screwed (?); p. pr. & vb. n. Screwing.]


To turn, as a screw; to apply a screw to; to press, fasten, or make firm, by means of a screw or screws; as, to screw a lock on a door; to screw a press.


To force; to squeeze; to press, as by screws.

But screw your courage to the sticking place, And we'll not fail. Shak.


Hence: To practice extortion upon; to oppress by unreasonable or extortionate exactions.

Our country landlords, by unmeasureable screwing and racking their tenants, have already reduced the miserable people to a worse condition than the peasants in France. swift.


To twist; to distort; as, to screw his visage.

He screwed his face into a hardened smile. Dryden.


To examine rigidly, as a student; to subject to a severe examination.

[Cant, American Colleges]

To screw out, to press out; to extort. -- To screw up, to force; to bring by violent pressure. Howell.<-- (b) to damage by unskillful effort; to bungle; to botch; to mess up. (c) [intrans] to fail by unskillful effort, usu. causing unpleasant consequences. --> -- To screw in, to force in by turning or twisting. <-- Screw around, (a) to act aimlessly or unproductively. (b) screw around with, to operate or make changes on (a machine or device) without expert knowledge; to fiddle with. [Colloq.] (c) commit adultery; to be sexually promiscuous. -->


© Webster 1913.

Screw, v. i.


To use violent mans in making exactions; to be oppressive or exacting.



To turn one's self uneasily with a twisting motion; as, he screws about in his chair.

<-- Screwball, n. 1. an eccentric or crazy person; an oddball. 2. a baseball pitch that curves in the direction opposite to that of a curve ball.

adj. eccentric; zany; crazy. -->


© Webster 1913.

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