booby trap

1 a usually concealed explosive device designed to go off when disturbed luckily, the bomb squad didn't find any booby traps Synonyms mine Related Words claymore mine, land mine; torpedo; bomb, explosive; hazard, pitfall, snare, trap; ambush, net, web

2 a danger or difficulty that is hidden or not easily recognized he noticed the booby trap in the interviewer's question just a little too late Synonyms pitfall, catch, catch-22, gimmick, gotcha, hitch, joker, land mine, snagRelated Words snare, trap, trip wire, web; hazard, peril, risk; bomb, bombshell, kicker, surprise (also surprize); bait, decoy, lure