8
Nasty Sperm Build-up. Often used by guys when explaining it's been awhile since they've had sex.
I'm too tired to go out tonight, but damn do I have NSB.
by RJ August 12, 2005
Mug icon

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
9
NUTTAL SUCKS BALLS THE BEST CLAN IN THE WORLD drunkenbusdriver,
yourdrunkenmom and darkcaps nsb.isgreat.tv
UHHH HEAY GUYS NS UHHH BEEE YEAH nsb.isgreat.tv nsb.isgreat.tv
by George Bush April 04, 2005
Mug icon

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

Activity