Also known as Skittle Bumping or Scissoring. It’s when two females grind genitals with one another in a cross legged position.
Anna fancies her vulvae being stimulated by Lorainne, as they embrace in the act known as the Gash Mash.
by MonkeyBoy808 June 15, 2010
by Bucky-boy Tiger-Lilly August 30, 2009
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 04, 2018
When a person gets bored of one persons vagina so has to swap from fanny to fanny. Also if a person does not get action from his girlfriend or only once or twice a week so finds other girls so he can get gash all week.
Joe: Woww i've got a proper gash mash-up this week lillie on monday then ellie tuesday then my girlfriends sleeping over wednesday but friday i think i will see Georgie.
Jack: Ahh cant be arsed my girlfriends fanny is to tight i get bored might as well go fuck Georgie.
Jack: Ahh cant be arsed my girlfriends fanny is to tight i get bored might as well go fuck Georgie.
by sbvodka July 28, 2010