A person who ruins a party by either stopping the fun or not participating in a certain activity.
Jeff is a party pooper because he won't play Spin The Bottle.
by Special July 18, 2004
A person that ruins a festive moment with their attitude.
Jan is such a party pooper, but we went on with out her!
by Runic Pride August 2, 2006
somebody who doesn’t like to have fun and is overall the lamest person you will ever meet. someone who has the name of “joaquin” will most likely be a party pooper
yeah Joaquin is being a total party pooper!”
by thebonechiller April 6, 2020
That guy at the party that takes a dump, clogs the toilet, and leaves the party right after.
That fucker Melvin, took a shit, clogged the toilet, and left right after. What an party pooper!
by Clittle81 May 31, 2011
Ass that you invite to the party that eventually starts being stubborn and ruins the fun.
It would be funny to stick a party pooper's head in the punch bowl
by lunar shadows September 5, 2004
1. Arnold from kidnagarden cop.

2. a person u invite to the party who ruins it. or someone who crashes ur party.

3. PARENTS!!!!!!!!!!!
1. Im the party pooper.

2. yo Jay brought bob nd he fucked up the party by calling his mom to pick him up.

3. hi honey were coming home from our vacation nd well be there in 10 min.
by Ceymore johnson March 14, 2005
A person or persons who once invited to a party, proceeds to get drunk, defecates themselves, and ruin the party via smell.
Jim is a nice guy, but once I found out he was a party pooper, we couldn't hang out.
by Andy Holman October 10, 2005