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When a guy anally penetrates a girl, and then leaves the semen-filled condom in her rectum.
So how's Cindy?
Fuck that slut, I party balloned her.
by T-Bo January 21, 2005
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1) A snake-skin like rubber, also known as a condom, that can be used to enjoy parties as much as you can with a special partner without risking the transmission of an STD.

2) A condom
"Thank God you brought a party balloon! Now I can get it on with that girl!"

Harold thought he was ready for his party with his, new shirt, alcohol, and swagger until he realized he forgot a party balloon.
by BrickTambland October 23, 2010
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Originating from an idea during lunch at a Sudbury high school, to party balloon is to blow up a condom that has just been ejaculated into and then popping it over the girl that you have just had sex with.
After listening to "Crank that", these faux ghetto kids thought it would be fun to invent their own version of supermaning a hoe. They decided that upon the completion of sex, they would blow up the balloon and pop it over their recently laid counterpart. then one gangster exclaimed "yo we should call that party ballooning" and then it was added as the 11th commandment.
by Drama King December 16, 2007
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