The Dirty Gavin Share definition Flag One man sits in a chair while the second proceeded to pass gas in his face, while a third proceeded to give oral sex to the receiver of the gas. Yo bros, you wanna do the dirty Gavin tonight? Dude that dirty Gavin was crazy last night. The Dirty Gavin by Srd-lrb November 6, 2024 Get the The Dirty Gavin mug.