Backwater Mud Motor

The act of motorboating someone's butt cheeks as they have diarrhea.

If you two are gonna Backwater Mud Motor, at least clean up after.

by Archetyp0 June 7, 2025

Somoan Backwash

Kissing a girl who has sucked a dick without prior knowledge.

"Did you hear? The Prom King got a Somoan Backwash"

by DoctorBadDragon November 19, 2016

Italian backwash

The act of ejaculating on your partner and then getting some wet or dry pasta and smearing it with your penis

Vito said he's going to get Marcella an Italian Backwash

by Aydyn February 26, 2017

cereal backwash

The part of dry cereal that ends up in the box rather than the inner bag due to slipshod pouring of said cereal.

This Fruit Loops box has some serious cereal backwash issues!

by ForestDad December 30, 2021

Miami Backwash

What's left behind after a woman takes a big swig out of the bottle right after blowing a dude at bottle service in the VIP lounge.

Careful bro, that chick drank right out the bottle after she got done blowing me, there's probably some Miami Backwash in there now.

by Damian Lewis February 11, 2022

Calgary Backwash

When a coked out white girl with poor dental hygiene backwashes into your draft beer at a Nickelback concert.

Hey bro Lisa was railing it up hard after supper last night and later on at the show she Calgary Backwashed chunks of hot dogs and onion rings into my beer.

by Jeromeleggings February 27, 2022

manitoba backwash

The little shit particles that fly out of you toilet onto the wall after flushing. More common after a full night of drinking Hand sanitizer and Rez wine.

I told my cousin to scrub his Manitoba backwash off the wall.

by Donytellanyone April 23, 2022