When a man cums into a girl's mouth, then, like toothpaste, swishes and gargles the cum before spitting it out, usually onto or into the man.
Dudebro #1: Dude I heard you smashed Stacy last week, that girl's a freak bro!
Dudebro #2: You aren't kidding, she was gargling gravy! My nut didn't taste half bad too.
Dudebro #1: Bet? Lemme get a taste!