Also found in: Medical.
1. vulgar slang A penis, especially when erect and inside one's pants (as if it were in one's pocket). I didn't want to stand up and make it obvious that I was sporting a pocket rocket.
2. slang A miniature electric or gas-powered motorcycle, as might be ridden by a child. David's dad bought him a pocket rocket for his birthday—the thing looks like real deal!
3. slang A compact vibrator specifically used for clitoral stimulation. I was mortified when my pocket rocket fell out of purse halfway through the date.
n. the penis. (Usually objectionable.) He held his hands over his pocket-rocket and ran for the bedroom.