Definitions by krautmonkey

michigan gas pump 

Fuck a girl with your cock, hence the pump. Once the vagina is dilated, fart in the orifice. Hence the gas. Michigan, because that's where my last girlfriend was from.

Girl: I'm from michigan

Guy: Can I give you a michigan gas pump?

Girl: Only if it is high octane.

michigan gas pump by krautmonkey December 19, 2013