Top Definition
A fictional, slide-whistle type noise imagined to be made during anal insertion. "Boo woop" can be used when describing anal sex, to get someone's attention, or just for fun in everyday conversation.
"Boo woop! In the pooper!"
by BSG August 14, 2006
5 Words related to boo woop

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.