1 definition by KH33

Top Definition
SBU
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

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug