Filling Up 

The process of getting an erection.

guy 1: Check out this picture my new chick. What do you think?
guy 2: I'm filling up

Filling Up by Check910 March 6, 2010

Filling Up the Stetson

Urinating in an open container while riding in a moving car. The phrase originated in 1835, when settlers riding the Oregon Trail were forced to relieve themselves in a large Stetson hat, to avoid stopping their wagons for fear of Indian attacks.

"Geez Jimmy, would you drive a little smoother? I'm filling up the stetson right now, but since you're driving like a maniac, it's splashing around everywhere."

Filling Up the Stetson by Ladderwalker January 27, 2009

filling up the pool 

The act of urinating into an object example; toilet, bucket, etc.

Guy1: Dude what took you so long
Guy2: I had to fill the pool up

I filled the pool up

I'm filling up the pool

filling up the pool by Ben. S April 1, 2007

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

filling up the jug 

When a man says that he's has blatter problems, but he's secretly going to have intense orgasms while fucking a milk jug.

He said that he needed to pee, but he was really filling up the jug.

filling up the jug by Cjrockinf August 3, 2017

taking the browns to church and filling up the pews 

An alternative to taking the browns to the superbowl

Dude, I 'm going to be taking the browns to church and filling up the pews.

taking the browns to church and filling up the pews by Booderness June 21, 2017