A verb used to describe the timber and all other auditory characteristics of a really muddy, undefined and characterless piece of audio - wheather be it the sound produced by a musical instrument, the sound of a certain piece of audio gear like a speaker or a microphone, recorded material or otherwise.
Concert attendee #1: Wow this band is so loud, yet I can barely understand what the frontman's screaming.
Concert attendee #2: Yeah the guitar sound is so fuzzy, it all just sounds like mush city.
Kid A: These headphones are crap, every time I turn the volume up it goes straight to mush city.
Dude A: Hey man have you listened to my new track?
Dude B: Yeah it's nice man, but you totally overdid it with the reverbs. Sounded like mush city to me.
Concert attendee #2: Yeah the guitar sound is so fuzzy, it all just sounds like mush city.
Kid A: These headphones are crap, every time I turn the volume up it goes straight to mush city.
Dude A: Hey man have you listened to my new track?
Dude B: Yeah it's nice man, but you totally overdid it with the reverbs. Sounded like mush city to me.
by Tresspasserxmassacare June 30, 2017
Get the mush citymug. 
When you have no need for english anymore and decide to create your own language. Only problem is nobody understands it.
by FreeStally January 19, 2022
Get the gordy mushmug. by queen la queffa February 19, 2019
Get the mushmug. by Talanagoddess April 26, 2023
Get the Mush tatmug.