Naked Brain

Flashing your one nut out like a crazy person through a zipper hole, usually to someone who's in on it. It's like a stupid contest to see who can pick the weirdest spot to do it (gas station, church, grocery store).

Showing off one bare nut through a broken zipper, usually to someone who's also showing off. It's a stupid game where you try to pick the most ridiculous place to do it (airport, school, pet store).

Popping your one nut out through a zipper hole like a maniac, usually to someone who's also doing it. It's a dumb contest where you try to find the most ridiculous place to do it (mall, hospital, library).