Jimmy cap - Idioms by The Free Dictionary
slang A condom. A: "Hey, Tom—this chick wants to bring me back to her place!" B: "Go for it, dude. Just make sure you wear a jimmy cap!" I always keep a box of jimmy caps in my bedside table—just in case.
a condom. (see also jimmy
.) You better get a jimmy cap on that.
References in periodicals archive
Which is fortunate, but that is exactly what he gets when an ambitious FBI agent launches a convoluted plot to bring down Jimmy Cap
that involves Harry as either a fink or a dead guy.