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.
Biddy bop - To walk to a predetermined destination with a sense of urgency or purpose.
I thought my brother was just in his room, but he had biddy bopped down the alley to his friend’s house.
yo bro you got in zang you crackin the bops