The Slip is a maneuver performed by a guy where he tucks in a small portion of his shirt into his pants, while leaving the rest hanging freely. It can be done multiple times and is most common in the front and back.
Brad Pitt does the slip when he wants to look chill. Only the front is tucked in but everything else hangs out.
A sexual act using a slip n slide, where the man inserts penis in woman's anus, and rides woman face down along a slip n slide (reverse slip n slide simply means man is on bottom and partners go backwards)
The westyn is where you take a girl to a staircase and jab ur cock in her throat until she vomits, making her vomit on the stairs, then you blow your load on her face while you knock her in the face, u then throw her body down and ride her down the stairs over her vomit while you shit on her
jason used The Slip' n Slide on his girlfriend last night, it was fun to watch