acronym for make up air, a unit which pulls in fresh air into an interior space which air has been removed due to exhaust fans therefore balancing the air pressure. a mua unit is commonly found in a restaurant's kitchen but it can be used in any space where exhaust fans are present
Gotta call my hvac tech since my mua unit broke down and now my kitchen sucks.
by mogus drip February 7, 2022
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Me
John: Did you take a shit in the microwave?
Randy: Mua? I don't think so.
by Womens Panties March 24, 2003
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When a guy spends time with his girlfriend on the pretext of doing some worthwhile work, he is said to be doing mua with his girlfriend.
Guy 1: Where is Amit? Is he in the lab?
Guy 2: No.. he is doing mua with his girlfriend.
by Definist December 12, 2011
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A person who repeats someone right after they said it, usually followed by "Ahaha" or "yeah totally"
Don't you copy me, what are you Manny MUA?
Manny: "Yeah totally don't copy ahaha"~
by YeahTotallyMyPseudonym May 11, 2018
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A girl that owns a set of makeup brushes and a morphe eyeshadow palette and acts like she is a beauty guru because her auntie let her do make up on her niece for a dance show once. Their makeup is usually cakey and they think they are all it. Will eventualoy put it in their bio on instagram to grt attention and make a site for their makeup looks to get customers and earn money. All of her customers are her friends that dont know any bettet themselves.
My mum just bought me the anastasia glow kit. Bitches come at me I'm a self taught MUA now!! Hater gonna hate xoxox

Anyone want a makeup appointment with me? Deposit £10
by toonicelol2000 February 23, 2018
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