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jokingly justin, frequently used under popbase’s replies
ended mustin!
i’m sure mustin didn’t took a shower the whole day!
mustin by mustin beaver January 5, 2021
a nickname for justin bieber for looking moldy and not taking a shower, as well as being a misogynist, racist and disgusting man
mustin is a disgusting man.
Mustin by sherlockt December 24, 2020
One of the most musty looking artists in the music industry who makes trashy music like "yummy"
He did got better by using unnatural products, recommended by his wifey
Mustin never showers.
Mustin by anonymous December 24, 2020
I can't believe they made a Mustin!

Antonym - Mocha
Mustin by sublime4510 August 1, 2008
Mustin is used when Justin Bieber looks ”musty”. But its important to add that he looks ”musty” because of his lyme disease. It affected his skin with acne and his mental health so that he did have the energy to take care of himself (like showering and eating properly). So using the term Mustin is mocking him with his disease.
Justins hair looks greasy and look at his acne eww Mustin needs to shower”

Also used as a drag on stan twitter:
”Mustin tanked”
mustin by dejavubiebs November 30, 2020

mustin min munchins 

a group of gay neurodivergent ppl on tuatwt who were previously shreks in a swamp before eating oranges from mustin min’s orange tree.
steve blackman: i hate mustin min munchins

aidan gallagher: they saved me from the deep fryer