Gas her back end 

To fuck one's back end

Bro 1: Bro I wanna hit up this thottie but I don't know what to say
Bro 2: Bro just tell her you're gonna drug her and gas her back end.

Gas her back end by The gasser June 10, 2018

Gas her back end 

To fuck one's back end.

Bro 1: Bro I wanna talk to this girl but I'm not sure what to say to her.
Bro 2: Bro just tell her you wanna gas her back end.

Gas her back end by The gasser June 11, 2018