O Party
An O Party is when people get their butts stretched into a big O by having sex with huge stuff. Then a bunch of guys shoot their cum into their stretched holes like it's a free buffet.
"I came to the O Party and my butt was stretched so much it looked like a tire.", @ButtLover420
"My twat is now a portal for cum.", @TwatSprinter
"I got syrup poured into my hole and it felt like a waterfall.", @SyrupSponge"