1. A sexually act in which a man stands slightly bent over with a woman kneeling behind him. She will purse her lips tightly around his anus. She then tugs on his flaccid member from between his legs as he releases a preferably hot fart in her mouth, thus expanding her cheeks much like that of a hot air balloon. Aviator goggles and scarf are optional.
Friend #1: I was able to talk Nichole into letting me give her a hot air balloon last night.
Friend #2: I don't know what that is, but it sounds fucking sick.