The frightening war cry of the common Toilet Tyrone or similar toilet-based salesperson commonly found in dingy nightclubs in an, often vain attempt to engulf you in a cloud of Joop, CK One or Davidoff Cool Water in exchange for whatever you can find in your back pocket (pennys, washers, lint etc)
Toilet salesman: "No Splash No Gash!"
Clueless toilet patron: "U wot m8?"
Toilet salesman: *unleashes cloud of musk* "U pay now"
Clueless toilet patron: "Please stop..."
Clueless toilet patron: "U wot m8?"
Toilet salesman: *unleashes cloud of musk* "U pay now"
Clueless toilet patron: "Please stop..."
by Bigby89 September 7, 2020

When a homeless woman washes her vagina in a bucket in a public place and then proceeds to drink the water afterwards.
by Larry David 420 November 14, 2018

by ifiwantsomethingilltakeit March 23, 2011

Similar to male teabagging, a female squats over someone’s face and lowers her vagina onto the person. Gash Mash is used as a practical joke or prank when performed on someone who is passed out or asleep. It can also be a sexual act as well. Another name for a vagina is gash.
At the sorority house last night, silly Sally drank 3 bottles of Boone's Farm wine passed out on the floor again, but this time the whole pledge class gave her a Gash Mash! Like, tots embarrassing!
by Dick B. Tricklin July 3, 2018

by SumRandomSumbodi September 27, 2006

Oh it’s gash they are meant to be
by anonymous July 31, 2021

A slang term for a woman's pudendal cleft, particularly during menstruation when it resembles a bloody wound.
by Space guru April 4, 2022
