Filling The Tank 

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

Filling The Tank by Keith ac May 20, 2008

Filling The Tank 

The action of three men banging one hole

Filling The Tank and janes house tonight with the boys

Filling The Tank by deez.big.huge.nutz February 5, 2022

Filling the Tank 

When two guys super glue the tips of their penises together and one guy ejaculates into the other man's urethra.

Tom: Do you think Bob likes guys?
Alex: I don't know, but I heard he was filling the tank last night.

Filling the Tank by MagentaMan March 15, 2024

Filling The Gas Tank 

Filling the gas tank is when you stick your dick into someone's ass (male or female) and proceed to piss.

Cade: I got laid last night.
Owen: Yeah right, by who?
Cade: Bronwynn let me try Filling the gas tank
Owen: 🅱oi

Filling The Gas Tank by Loaf of Beans June 15, 2018

Filling Up The Tank 

Peeing in a girls butt during anal.

Dude me nd my girl are filling up the tank tonight @ the wedding reception

Filling Up The Tank by drugwad May 31, 2021

Filling up the tank 

When a guy sticks his penis into a girls ass and pisses

I was Filling up the tank with my girlfriend
Yo Tom what the fuck

Filling up the tank by MyDadRapesMe March 29, 2022