look up any word, like blumpkin:
 
1.
Fucking awesome pants worn only to parties.
I don't always wear pants, but when I do, I wear my red corduroy party pants.
-Most Interesting Man In The World
by The Mo$t Int€r€$ting Man! October 16, 2011
 
2.
Pants that have holes in them due to the immense partying they've been through.
You're wearing your party pants
by OGstatus April 06, 2009
 
3.
A pair of comfy pants that have some give when you drink and eat to much at parties, they will also have some stretch so they will not rip if you dance the night away or fall down drunk.
its going to be a great party tonight, dont forget to wear your party pants
by red_roses2011 December 23, 2011
 
4.
A man or woman who refuses to be constrained in the confines of any kind of lower body apparel after a few too many drinks.
Man, Ethan just funnelled 5 beers!
Ya! he's got his partypants on!
by the original ethan April 11, 2011
 
5.
Not to be confused with party pooper:

Noun. Someone who is miserable and a spoilsport, consequently putting a damper on the pleasures of others.
Peter, that partypants, he really was a party pooper at the last team meeting.
by shazzamuk August 10, 2006
 
6.
Party Pants is slang for a pair of pants that look rather on the homo-sexual side.
When Ian Peck wore his Party pants. I almost fuckin barfed.
by CountChocula April 10, 2005
 
7.
my bestest friend who usually is having a party in his pants... and youre invited!
mr party pants is inviting you to his next party!
by jess-to-the-ica May 20, 2008