This is when someone discreetly rips out on of the hairs on their nutsack or head and puts it on an item of food.
Jon: Aw shit, Dan just hairtopped me again.
Dan: Haha you dumb motherfucker!
pubes food sandwich hairtopping stupid
This is simply when you expose the hairy flesh that covers your testicles. Usually used to scare or freak out you friends. Oftenly get called a faggot for it.
Jim: Dont go over there Dan is sack-skinning everyone again.
Joe: Oh wow he's such a faggot.
sack-skinning testicles pubesirritatingMahle
This is a dick wedgie. It is when ur underwear rides up the middle of your sack.
dick wedgie dwedgie painful skin