Top Definition
When one pisses after having held it for a long time and has a great sense of relief.
*Walks out of stall towards sink*"Whew that was a killer Urinegasm"
by REDXIII April 24, 2012

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.

×