a hidden bomb that explodes when the object that it is connected to is touched 饵雷；诡雷 Nobody went near the abandoned car in case it was a booby trap. 万一这是一个陷阱，没人会靠近这辆废弃的汽车。 a booby-trap device containing two kilos of explosives 一个装有两公斤炸药的诱杀装置
a hidden device that is meant as a joke to surprise somebody, for example an object placed above a door so that it will fall on the first person who opens the door （为开玩笑而设下的）陷阱