A person who takes a giant poop at a family reunion
Oh my god he was a party pooper at his mothers birthday party.
by Ed talk November 29, 2019
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Someone who ruins fun by not participating in a certain activity even though they were given advance notice.

a tall, talented bike rider who wears tight jeans
jarrett moore is a fucking party pooper, were going to lucky and he won't come cause he has to stuuuuudy the next day.
by Martin luis. October 25, 2009
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Someone who ruins a party by getting totally wasted and shits on the floor, the couch, his friend's polo, the wall, and many other places. As well as shitting all over the place, a Party Pooper can sometimes also throw up underneath a dog bowl, piss on the kitchen floor, or on someone's shoes. The Party Pooper usually awakens the next morning covered in his own shit, vomit, and piss. The Party Pooper flees the party house in a state of confusion, leaving his disgruntled friends to clean up his disgusting mess.
A classic example of a Party Pooper is Tyler Price, who did everything that is described in the definition.
by Gaz55 February 19, 2008
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Before ejaculating on your partners face, shove a handful of confetti in your anus. After ejaculating quickly turn around and fart out the confetti on your partners face causing it to adhere to the semen. Often followed up by the male yelling "Surprise!"
I had leftover confetti in my house so what else would I do? I gave her a party pooper of course.
by papasmurff September 19, 2010
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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
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Someone that goes and poops at a party to make everyone avoid the bathroom and to put everyone in a bad mood because all they can smell in the entire house in the stinky poop.
-Dude this party sucks, it smells like poop all over your house so everyone just left or went outside.
-Yeah that was Craig who pooped in my bathroom downstairs.
-Yeah. Why would someone even poop downstairs? Is that sabotage? What a party-pooper.
by André10000 June 23, 2011
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Someone who ruins a party by not participating in something, or not making the party not fun in some way. Or doing stupid stuff to get attention and accidentally doing something bad and now everybody hates you even more.
Jimmy's such a party pooper, He recked our squad in fortnite. And now he's blaming it on me >:(.
by AQUALIME April 11, 2021
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