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An acronym given to only the holiest prophets of the church of COVID. It means “masks be upon him.” Important side note: MBUH does NOT meanmask be upon him”. That implies one singular mask, and one mask is simply not enough to stop COVID from killing grandmas.
Person 1: praise Lord Fauci (mask be upon him)
Person 2: Dude stop spreading misinformation. You know wearing only 1 mask can kill trillions of grandmas. Say Masks be upon him or MBUH for short.
MBUH by ilovetrump2024 September 7, 2021
Related Words

mushdash 

The facial hair found between the upper lip and nose of a toothless, homeless person.
Hey sweet cheeks, wanna mushdash ride? Only 10¢!
mushdash by Bippity Bopster October 18, 2008

mushballface 

n. a person who is sometimes overly sentimental in the provision of affection and endearment towards their partner.

They may not always be that way, nor is it necessarily a bad thing (although it is unbearable to others if witnessed).
Philemon: You're just the tastiest, butteriest, nommiest biscuit in the whole wide world, aren't you?

Baucis: No, *you're* the tastiest, butteriest, nommiest biscuit in the whole wide world.

Philemon: Oh, we're such mushballfaces. /butterflykiss

Hermes: d'omg, you two are insufferable.
mushballface by a. fort December 18, 2011

Mushi Mu 

Mushi Mu is the cute, fluffle, FAUX-FURRY mascot for ActFur on air.

He is often seen listening to music on his cool stereo headphones and noming on bacon.
Not a fox, nor a bunny, cat OR dog.... Mushi Mu iz a;

FAUX-FURRY!!!
Mushi Mu by Foxtailedcritter August 23, 2011
A symptom brought on the day after heavy drinking where one is not hungover yet they are unable to use their brain to think properly.

Symptoms could include stuttering, mumbling, and excessively long pauses when responding to a simple question
EX 1: Dude, Luis drank so much last night that he's got Mush Mind today.

EX 2: No one seems to be thinking straight today at work, must be Mush Mind Monday
Mush Mind by PEUGNET April 9, 2013

Mush Rot 

shitty feeling in stomach after eating mushrooms
Dude this mush rot kills dude
Mush Rot by mushy mc'musherson October 10, 2010