From WordNet (r) 3.0 (2006):
fob
n 1: a vest pocket to hold a pocket watch [syn: fob, watch
pocket]
2: an adornment that hangs from a watch chain
3: short chain or ribbon attaching a pocket watch to a man's
vest [syn: fob, watch chain, watch guard]
v 1: deceive somebody; "We tricked the teacher into thinking
that class would be cancelled next week" [syn: flim-flam,
play a joke on, play tricks, trick, fob, fox,
pull a fast one on, play a trick on]