Basically, a really low-lying cloud. Fog usually rises in the mornings, obscuring roads and making it more dangerous to drive--and much more dangerous to fly. Fog can also lend an air of mystery to a scene, which makes it a popular element in horror movies and detective stories.

A type of node in VR technologies that progressively obscures visibility with increasing distance (not unlike real fog) which is handy since most VR platforms are struggling to keep up with all the objects on view.

A song by British rock group Radiohead, first played live on July 9, 2000 in Caesaria, Israel under the title Alligators in New York Sewers, and later recorded in the studio and released as a B-side on the Knives Out UK CD2 single under its current name.

Whereas the original live version consisted of Thom Yorke singing and playing piano solo, the studio version begins with electronic chimes and noise, and bass guitar accompanying Thom's vocals. Tambourine, electronically-processed guitar, and drum kit enter the mix half of the way through the song.

There's a little child
Running round this house
And he never leaves
He will never leave
And the fog comes up from the sewers
And glows in the dark

Baby alligators in the sewers grow up fast
Grow up fast
Anything you want it can be done
How did you go bad?
Did you go bad?
Did you go bad?
Somethings will never wash away
Did you go bad?
Did you go bad?

Fog is a song by Radiohead, first heard in the year 2000 in Israel. It was released on the EP Com Lag and on the Knives Out single.

The version on Com Lag is extremely simple, but also extremely moving. It features only Thom Yorke singing over a piano, and is the version that was heard first. The song has since been expanded to include the whole band playing the tune, although I have not yet heard this version.

Of course, the meaty bits of any Radiohead song are the lyrics. The first verse talks about a "little child/running round this house" who never leaves, and to be honest I can get very little meaning out of this part. The second verse is generally the most interesting.

And what be in the second verse?

The first part says that "baby alligators in the sewers grow up fast/grow up fast". The baby alligators are unwanted, and are just flushed into the sewers-out of sight, out of mind, right?. The "grow up fast" bit does not mean growing up fast in a physical sense, more in a psychological sense; these metaphorical alligators have had to grow up fast to deal with all of the hardship and torment.

The next part says "Anything you want, it can be done/how did you go bad?". This can be taken to mean that despite the best efforts of everyone concerned, everything is going wrong and nobody can stop it at this point.

The final "real" line says "Some things will never wash away". Some torment can never be undone, and will always be there, no matter how long after the event it has been-it's the same with everything. Given the place where this was first performed (Israel) these lines taken together indicate that the song was written about the tension between Israel and Palestine, with the "baby alligators" being the Israeli/Palestinian people and the "sewers" being the disputed and violent areas. All in all, an extremely touching and moving song.

Lyrics can be found at

I just added this on which should explain my own personal view:

It's about some horrible tragedy, some past torment in your childhood. And it'll never leave you. It'll make you grow up fast, knowing too much about the bad side of the world, and it will certainly never wash away into nothing. You can do anything you want to...but it'll never go away. A personal song, with a big personal resonance for me.

Fog (fog), n. [Cf. Scot. fog, fouge, moss, foggage rank grass, LL. fogagium, W. ffwg dry grass.] (Agric.)


A second growth of grass; aftergrass.


Dead or decaying grass remaining on land through the winter; -- called also foggage. [Prov.Eng.] Halliwell. Sometimes called, in New England, old tore. In Scotland, fog is a general name for moss.


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Fog v. t. (Agric.)

To pasture cattle on the fog, or aftergrass, of; to eat off the fog from.


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Fog v. i. [Etymol. uncertain.]

To practice in a small or mean way; to pettifog. [Obs.]

Where wouldst thou fog to get a fee?


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Fog n. [Dan. sneefog snow falling thick, drift of snow, driving snow, cf. Icel. fok spray, snowdrift, fjUk snowstorm, fjUka to drift.]


Watery vapor condensed in the lower part of the atmosphere and disturbing its transparency. It differs from cloud only in being near the ground, and from mist in not approaching so nearly to fine rain. See Cloud.


A state of mental confusion.

Fog alarm, Fog bell, Fog horn, etc., a bell, horn, whistle or other contrivance that sounds an alarm, often automatically, near places of danger where visible signals would be hidden in thick weather. - - Fog bank, a mass of fog resting upon the sea, and resembling distant land. --
Fog ring, a bank of fog arranged in a circular form, -- often seen on the coast of Newfoundland.


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Fog (?), v. t. [imp. & p. p. Fogged (#); p. pr. & vb. n. Fogging (#).]

To envelop, as with fog; to befog; to overcast; to darken; to obscure.


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Fog (?), v. i. (Photog.)

To show indistinctly or become indistinct, as the picture on a negative sometimes does in the process of development.


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Fog (?), n. (Photog.)

Cloudiness or partial opacity of those parts of a developed film or a photograph which should be clear.


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Fog, v. t. (Photog.)

To render semiopaque or cloudy, as a negative film, by exposure to stray light, too long an exposure to the developer, etc.


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