When you use smegma as anal lube.
I gave her the best mush butt of her life.
Mush Sally... Any slower and you'd be going backwards!
A sudden state of mental confusion or forgetfulness experienced by a retired individual after living in the countryside mountains for an extended period of time.
Loree: "I don't see the pickles in the grocery bag."
Bill: "Oooh I must've had a bad case of a mountain mush. I totally forgot!"
When u try to have sex with your girl but u have a floppy flaccid penis that just pushes against her vagina.
Man!!! U got dat mush at me dick!!!
Noun. When your brain is overloaded with too much information going in, pushing out other vital information in the process, causing your brain to be in a state of mush-flux.
Before that exam my mate was in mush-flux, but he still aced it, cuz Jimmy's a top bloke.