1 definition by KH33

Top Definition
The condition known as Sperm Back Up usually because the wife or significant other has not taken care of you. The symptons are similar to PMS in women.
Dude, Andy must have SBU because he was a prick yesterday.
by KH33 June 08, 2007

Free Daily Email

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

Emails are sent from daily@urbandictionary.com. We'll never spam you.