= C =
[Usenet: portmanteau, clue + two-by-four] The
notional stick with which one whacks an aggressively clueless
person. This term derives from a western American folk saying
about training a mule "First, you got to hit him with a
two-by-four. That's to get his attention." The clue-by-four is a
close relative of the LART. Syn. `clue stick'. This
metaphor is commonly elaborated; your editor once heard a hacker
say "I smite you with the great sword Cluebringer!"
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.