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The act of expelling urine into a woman's asshole. Often brought about when asking "May I pee in your butt?".
Did you hear about last night? Tyrone ended up filling the tank with Shelly to the point where she was dripping oil for 3 hours
by Keith ac May 20, 2008

Words related to Filling The Tank

anal sex angel cruisers anus asshole fill the tank peeing