1. transitive. To surprise with or catch by means of a booby trap; to make the victim of a booby trap (in various senses of booby trap n.).
a. orig. Military. To plant a concealed explosive device on (an object), so that it detonates if it is disturbed; to plant one or more such devices in (a place or area). Also with with. Cf. booby trap n. 2b.
b. To modify or rig (an object, substance, etc.) secretly so as to cause surprise or discomfort when it is used, eaten, etc., esp. as a practical joke; to place a booby trap (booby trap n. 2a) in (a place). Also with with.
3. transitive. fig. To cause (something) to have or include hidden difficulties or pitfalls, esp. in a deliberate attempt to trick the unwary (frequently in passive). Also: to cause unexpected difficulties to; to sabotage. Cf. booby trap n. 1.
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