A very soft (mushy) bowel movement in which an individual wipes their anus over and over again without any great success, resulting in an itchy butt, and the use of a whole roll of toilet paper.
Dude! Why is it that you always get mush tush at my house?! You owe me some Charmin you stinky bastard!
by Lizzyloooo November 18, 2014

by anonymous March 14, 2020

by beeblesbeebo June 15, 2021

When a Character is written not too Out of Character (OOC) but just enough that the writers bias of them shine through and change them enough that it’s noticeable
“I found a cool fic with my favorite character!”
“Is it any good?”
“Yeah but it’s character mush so they’re a bit OOC”
“Is it any good?”
“Yeah but it’s character mush so they’re a bit OOC”
by etheralSurprise July 4, 2021

A nickname given to someone whose brain has seemingly turned to mush after smoking too much marijuana (or actually using too much of any drug but primarily used in association with pot heads)
Tommy: Yo, Nicky has been saying some really weird stuff as of late.
Brian: so you've noticed that too huh? I think we're gonna have to start calling him "Mush" now.
Tommy: I kinda figured that would eventually happen with him but I didn't think it would be this soon.
Brian: so you've noticed that too huh? I think we're gonna have to start calling him "Mush" now.
Tommy: I kinda figured that would eventually happen with him but I didn't think it would be this soon.
by SpeedBall Inc. February 4, 2021

by CBTHE3RD March 20, 2023
