Top Definition
When a person holds their bladder for several hours and then empties the tank like a tsunami, in this situation its a pissnami.
Man it was like a pissnami in there, it destroyed everything!
by Fayyem May 01, 2010

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.

×