Blowing up the Balloon
When someone buzzes on a brass mouthpiece in someone's asshole.
Dude! Some of those brass players are into some weird stuff, sometimes they'll even enjoy blowing up the balloon!
blowing up the balloon too much
When you purposely put too much Helium in a balloon, making it pop.
Person 1: Why were you busy?
Person 2: I was blowing up the balloon too much.
Person 2: I was blowing up the balloon too much.
blow up balloons
Giving head
How about you come over and blow up balloons