dud
adj : failing to detonate; especially not charged with an active
explosive; "he stepped on a dud mine"
n 1: someone who is unsuccessful [syn: flop, washout]
2: an explosion that fails to occur [syn: misfire]
3: an event that fails badly or is totally ineffectual; "the
first experiment was a real turkey"; "the meeting was a
dud as far as new business was concerned" [syn: turkey,
bomb]