Bro Glide

The action of a man, mostly a frat boy (or Bro) rubbing his male private parts in between another bro's backside cheeks.

Technically, the action doesn't have to be between two males. A woman's back side cheeks can be used as well, which is also commonly known as Ho Gliding or Bare Back Grinding.

"I got a six pack of natty ice! Let's bro glide!"

"Who's up for a game of, who can bro glide the best without bro'ing your load?"