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3.
When you laugh so hard a little pee comes out.
"I was so pissterical i wet my pants!"

"He/she made me laugh so hard I was pissterical!"
by zenrose May 15, 2009
 
1.
When you are laughing so hard that you wet your pants.
The joke Johnny told was so funny that by the time he got to the punch line, I was pissterical.
by Don McKeefery April 26, 2007
 
2.
An event or happening so funny, you instantly experience bladder failure.
The comedians jokes were pissterically funny
by tenersur January 11, 2014
 
4.
When you are laughing so hard that you wet your pants.
The joke Johnny told was so funny that by the time he got to the punch line, I was pissterical.
by Don McKeefery April 06, 2007
 
5.
Something so hysterically funny one wets one's pants.
That joke is piss-terical!

You are piss-terical!
by Wolfie Griffith October 29, 2009