When you have anal sex with a girl or guy in the ass and they have gas. This produces a barrier of gas between the rectum and the penis creating a cushiion of air.
I fucked a girl in the ass last night, and she had so much gas; it felt like an air ride suspension on a semi.
type of suspension utilizing an air compression system which replaces stock or aftermarket shocks. They are especially made for comfort and you can adjust each shock individually at any time
guy 1: my dub is slammed hard
guy 2: thats tight but tour lip has gotta be fucked up from speed bumps right
guy 1: nah i've got air ride