The sexual act of consuming as much epicac and laxitives as the human body permits, then using your supercritical shit and vomit combo to paint your partner before rolling around, locked in coitus, writing the entirety of Mozarts 5th symphony with your body fluids.
Steve: how was that chick you brought jome last night?
Dale: dude.... she wanted a mozart powerwasher ..... no....
Steve: I'd still hit
Dale: dude.... she wanted a mozart powerwasher ..... no....
Steve: I'd still hit
by Joeseph Bartholomew nuts May 09, 2022
In the act of anal sex, in which the receiver violently defecates on the other participant's penis while it is still inside of them
The huzz downed 4 steakhouse burritos and asked if I wanted to do it from the back. Thats a Mediterranean Powerwasher waiting to happen
by Drip Droplets June 03, 2025
by Powerwashing April 15, 2019
A Golden Powerwash is you you take a shit, and then you have to take a piss. You use your piss to clean the remaining shit smears.
Damn, Jack, I had to use a Golden Powerwash to clean off the remaining shit smear, and I flushed a turd.
by Logan0787 May 24, 2023
To violently puke (preferably high liquid content) all over something - usually a toilet or a floor - with such force that it could clean the surface you're hitting.
by Efukts July 14, 2021