Top Definition
The act of slamming a babe's G-spot as hard as humanly possible.
dude1: "Bro, did you see that fly honey over there?"
dude2: "Yeah dude, I'm getting ready to rail that gash. get pumped."
dude1: "Deal."
by sebastian crucial, d loke, gsb January 13, 2007
12 Words related to rail that gash

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