booby cage

A “boob” is a dumb person. Someone that goes through life unsuspecting of things. A “booby trap” is a trap that is so obviously a trap that only a boob would get caught in it. Sometimes a prison is also referred to as a “booby trap” because those in there were not smart enough to stay out of it.

My friend got thrown in the booby cage. The dumbass should have known the cops were watching that house for illicit drug dealing.