L7 Gas Share definition Flag When a standing girl farts in a sitting mans face as she jerks him off. "I had a 2nd date with Bertha last night. We didn't have sex but she gave me some bomb ass L7 gas." L7 Gas by TheLongWind April 13, 2021 0 0 Get merch Get the L7 Gas mug. Buy Now — $32.95 See more merch