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-noun
Used as a derogatory or racist term for an Asian, or a person of Asian descent. (Derived from a sound made by a South Korean woman after being hit in the back by a golf ball.)
Man 1: How the hell am I supposed to park here? This person's taken up 2 whole spaces!
Man 2:Probably a stupid muckma.

Man walking into a room full of asians: Hello MUCKMAS!
Muckma by chanman~ November 5, 2009
Related Words
Mukuma is a name of a very handsome and funny and all around amazing guy, he’s very good at sports and he is always really happy and popular.
Oh man, I wish I could just be a Mukuma in sports
mukuma by JamesMcrudden June 9, 2019
Acronym.
Microsoft, U Can Kiss My Ass.

A substitute for profanity to use when dealing with restrictive or buggy aspects of a Microsoft operating system software package. Frequently used by pro-Linux staff working in an Microsoft mandated IT department.
1. "Arg !! Another BSOD ! Muckma !".
2. "Corporate said we have to use IIS". "Muckma.."
Muckma by IT_Dude May 1, 2011

muckman18 

The most idiotic muck player of all time
Person 1: "Oh its muckman18"

Person 2"Bet he would die in the first 8 seconds!"
muckman18 by jaidengirl November 9, 2022

mucular war 

A war involving mucous, in which one or more people who are getting a cold come to work anyways and infect a large portion of the staff through the usually careless spread of mucous (ie: sneezing, coughing, wiping your nose with your hands and then touching shit that other people have to touch). War ensues when one of the affected parties returns the favor at some other time.
If Eddie McBeddie thinks he's that important to come to work and spread his freaking cold germs, then I'm afraid I have no other alternative than to chastise him severely and declare mucular war.
mucular war by fatngassy May 23, 2007
Something that is very beautiful, cute, and tiny.
Oh, my, god! That is quite mumuma.
mumuma by Huchiguchiyayaya April 20, 2008