mouthwash challenge

To drink or consume, typically a full glass, or as much as one can handle, of mouthwash. Similar to: cinnamon challenge.

How is it even possible for "the mouthwash challenge" to be popular on twitter?

by Corny Marcus January 16, 2017

Mouthwash Martini

When you put hand sanitizer in your mouth and make out with the person next to you

Hey do you want a mouthwash martini

by Winner9956 January 17, 2022

Lagoon Mouthwash

Lagoon Mouthwash-
When one person receiving oral, pisses down the throat of the person giving, and that person precedes to vomit up the piss onto the receiving person’s penis.

Person 1: It’s been a while since I’ve gotten Lagoon Mouthwashed.

Person 2: What’s that?
Person 1: Oh, oh buddy..

by Tangerinebee March 12, 2020

Bong Mouthwash.

Bong MouthWash :
When you swish the bong water in your mouth like mouthwash.

Stoner: Bro, I forgot to bring water to my smoke sesh, and my mouth was dry as a camels pussy.
Stoner #2: And?
Stoner: I had to Bong Mouthwash.

by MegaMilky April 28, 2021

Daisuke (Mouthwashing)

A kid (On their early 20s) whom parents sent him because the only thing he did was blacking out in parties. He is a intern and he over all was the most oblivious but also the most hopeful out of the whole cru of the Tuplar from Mouth washing (game). Anya mostly hates Daisuke in a sibling way but overall everyone loves Daisuke (She loses to many board games).
This downfall is when he wanted to fix a vent and then got severally injured which was going to lead to a slow and painful death but Swansea (Mouthwashing) sped up the process by putting him out of his misery with a axe.
Also, he is a confirmed gooner....

"Daisuke (Mouthwashing) is my favorite character"
You are real and at this point there is no way to proof you wrong

by Femtalover January 2, 2025

Mack 10 mouthwash

The act of unloading a clip off a mack 10 in someones mouth.

I heard he was talking crap, so he took em out to the back and gave em the old mack 10 mouthwash.

by the xlaxer June 17, 2010

Mississippi Mouthwash

Rimming your partner right after they take a dump, and repeatedly rinsing your mouth out with water until the water is no longer brown and the anus is sparking clean.

Mary Alice was upset when she was out of toilet paper, but Roger said "don't worry baby, I can give you the Mississippi mouthwash".

by LaShondralah Jones May 8, 2025