fan belt

n : a belt driven by the crankshaft that drives a fan that pulls

air through the radiator

rat belt

A cable tie, especially the sawtoothed, self-locking plastic

kind that you can remove only by cutting (as opposed to a

random twist of wire or a twist tie or one of those humongous

metal clip frobs). Small cable ties are "mouse belts".

[{Jargon File}]