Alternate spelling of "my" used to indicate an uneducated slack jawed or whiny voice. Used to mock something that someone/people you disagree with constantly go on about. Often used alongside other mocking techniques like deliberately bad spelling or all caps.
MUH GENETIKS (mocking overweight people who claim their weight is beyond their control).
MUH OPPRESHUN (mocking SJWs)
MUH SOVEREEEEIGNTY (mocking Brexiteers)
MUH CANTHAL TILT (mocking incels saying trivial physical features is why they're incel)
MUH SeKoNd aMeNDMunt (mocking gun nuts)
MUH konDiShun! (mocking a colleague who constantly claims that he's late because of some medical problem which you don't believe)
by blahiojjsd January 31, 2019
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Husband walks into cave after a long day of hunting; sees wife and say's Muh.

Wife responds with, Muh.

They go on to make a delicious dinner, and passionate love afterwards.
by Basehitter3 October 7, 2010
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A shortened form of the phrase: "Must be nice". Created out of pure laziness of not wanting to say the entire phrase. Sometimes the word "It" is placed in front, meaning: "It must be nice".
Jeff: "Want to go to the Outpost for some beers?"

Eric: "Sure, just got my pogie cheque today."

Jeff: "Muh!"

Mitch: "I'm Buying in for $30"
Devon: "Muh!"
Mitch: "For You!"
Devon: "FOR YOU!!"
by TBaytilted March 1, 2010
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when someone or something looks odd, it is simply muh, Or if something funny happens you simply say muh.
Jenny - joey, i have crabs
joey - Muh
by joey ash February 17, 2004
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A typical annoying response to anything, similar to meh, but like the cheap knock off brand.

Also can be used as an insult.
"How was your lunch today?"

"..muh"

"You are SO MUH"
by jazzie pazazzie February 4, 2010
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Kevin: "Did you do the math homework last night"
Samuel: "Muh"
Kevin: "I take that as a no"
by Bigger Hoss August 13, 2019
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