The act in which a male ejaculates in their partners mouth causing it to fill up. The man then smacks his penis on the mouth causing hot sticky cum to spray out like a hot air balloon.
Friend #1: dude I was hot air ballooning my gf last night.
Friend #2: damn I really want to try that with mine.
Friend #2: damn I really want to try that with mine.
by Icnvnu February 13, 2023

The hot air balloon is when you fart in someone’s mouth, they swallow said fart, and then due to the laws of physics that hot air rises, one must do a handstand in order for the fart that has been digested to make an expedited movement to the recipients colon. At this point it may be ejected forcefully onto or into the other partner, or into the room.
by sherwinre November 9, 2019

When you’re eating ass, and the receiver farts hot air in your mouth and puffs your cheeks like a balloon
“Man I was eating her ass real good the other day and she hot air ballooned me, it was weird but I think I liked it, I might be into hot air ballooning”
Him 2: “
Him 2: “
by Chris993 April 3, 2023
