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

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

Methane Mouthwash

When you drop your drawers and bare-ass fart into your sleeping friend's open mouth as they are breathing in, causing them to jump awake and spit.

Dude, John is passed out with his mouth wide open. You should go and give him a methane mouthwash and see how fast it makes him stop snoring!

by Mr. Led Zeppelin March 21, 2020

The Milwaukee Mouthwash

When a girl squirts in your mouth while she is crushing your head between her thighs

I heard Kamala gave Ron The Milwaukee Mouthwash and he couldn't talk for a week.

by Richard Waterson December 4, 2023

Satan's Mouthwash

The rare term of describing how it feels to temporarily choke on your own spit mid sentence, usually some people use this term in an angry, annoyed way (In an irrational tone of voice)

Random Guy: "Steve, this morning I just got Satan's Mouthwash 3 times!"
Other Random Guy: "That sounds horrible, Alan."

by Another Unused Spoon March 21, 2021

Mongolian Mouthwash

A male peeing into a female’s mouth.

My husband gave me the ol’ Mongolian Mouthwash now I’m pregnant with Martians. Elon Musk help me!

by Wayne0keefe April 4, 2021

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