When two dudes get together and decide to give themselves a mutual wank. Generally, performed out of sheer boredom. However, Pullin' Skins may apply to any situation involving two or more males jacking off together.
Roger and Carl became bored after watching episodes of Game of Thrones so they decided to liven things up and started Pullin' Skins.
by Eaton Holgoode May 5, 2015