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.

Mack 10 mouthwash by the xlaxer June 17, 2010

Cleveland mouthwash

The act of expelling diarrhea from one's anus into the open mouth of a waiting recipient, especially after said recipient has wronged the shitting party in some way

Bitch trashed my computer, so while she was sleeping I gave her a Cleveland mouthwash.

Cleveland mouthwash by TheThomas April 20, 2008

anal mouthwash 

when you participate in the act of shitting in someone's mouth and they proceed to gargle the feces in their mouth

i cant wait to have joseph anal mouthwash me

anal mouthwash by John Wayne May 27, 2016

Metarie Mouthwash 

A golden shower in a tub with the woman drinking said golden cocktail

Harper gave his girl a golden shower and his girl drank the Metarie Mouthwash.

Metarie Mouthwash by BTTYoungblood December 7, 2018

Miami Mouthwash

An act involving two dudes in which one dude fills his mouth with Fireball and makes out with the other dude, sloshing around the fireball in both mouths

Dude, Alex got drunk and gave me the best Miami Mouthwash I’ve ever had

Miami Mouthwash by HughJass7580 September 25, 2022

Southie Mouthwash 

Dr McGillicuddy's Menthol Mint

FRIEND: Damn can’t get this assbreath out
ME: try some Southie Mouthwash

Southie Mouthwash by LarrySquirrel March 18, 2023

golden mouthwash 

The act of peeing directly into your partner's mouth. Then the one who recieves the urine is called the gargler because they gargle the urine for approximately 30 seconds. Then the gargler spits the urine into his partners mouth and he becomes the gargler. This cycle repeats until the urine no longer tastes like urine because of it being waterdown from the saliva. Then they play paper, scissors, rock and the loser then has to swallow.

Tina is tired of her breath stinking because Sarah always wants to give her a golden mouthwash.
"Sarah, can we skip the golden mouthwash tonight, because no one at school will talk to me while my breath smells like your urine," Tina exclaimed while Sarah was crouching over her mouth.

golden mouthwash by Benjamin Whitaker November 16, 2007