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1.
Someone who repeatedly and extremely rips ass in public places. The word came about when women in the 1920's used to get bad gas after eating vegetarian chili. It sounded like a chainsaw and therefore they were givin the name "chainsaw butt"
Dayum Keesha, Lay of the chili, you're such a chainsaw butt!
by N-Gizzle the original hotboi January 09, 2005