When one male of a large size with the nick name " Big Engine" is unexspectant of foul action that is coming at him , and his agressor "Matt" taticaly get's infront of Big Engine' face and " Bare Ass Farts" while farting spreads his ass cheeks open and makes contact with the Big Engine's head or face with a strong chance of fecies flying from Matt's ass and landing on the engine.
While watching the Sheild Matt backed his bare ass up and spread his cheeks and assed the engine. This is called
" Assin The Engine"
by Big Engine September 17, 2008

4 Words Related to Assin The Engine

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