Pushing in the tip of your penis to feel an erotic sensation while masturbting.
Yo, did you hear Kyle Button Bopping in the school bathrooms? He's so weird.
A person who is promiscuous or a “hoe”.
“She is a BOP girl, she sleeps with everybody.”
Sarah: I'm pregnant...
Johnny: Are you getting an abortion?
Sarah: Yea I'm going to the bop a baby bank tomorrow.
yo bro you got in zang you crackin the bops