An MGK is someone who tries to get attention by making noise and trying to insult better people. They generally take 'L's when it comes to diss tracks, and they're only ever relevant when people are laughing at them.
"Hey did you see that MGK earlier? He tried to diss Eminem and got absolutely fuc*ing flamed ahahahahaha"
by itsnavidad September 18, 2018
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One of the best artists in the world.
Rapper

and
Pop rock star

He is cool,amazing and hard working
by June 26, 2021
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MGK stands for (Marshall Gonna Killme) the white rapper MGK who LOVES tattos recently released his diss track Rap devil on the rap god Eminem himself and got roasted by Eminem's reply diss track Killshot which made him look like the new wierd kid at school, honestly, we should give a moment of silence to white rapper MGK for sacrificing his career to bring back Eminem and letting him release Killshot, bye bye MGK...

Wierdo: Yo bro Rap Devil roasted Eminem and is way better that Killshot

Me and every person who has a brain:*facepalm*..... this is why aliens don't visit us.....and they're right...
Wierdo: Yo bro MGK's Rap Devil roasted Eminem and is way better that Killshot

Me and every person who has a brain:*facepalm*..... this is why aliens don't visit us.....and they're right...
by MGK=Marshall gonna killme January 4, 2019
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Abbreviation for Made Gay Kelly. He's a bitch ass delusional "rapper" who is the opposite of everything he raps about.
MGK stands for Made Gay Kelly!
by Twitch Howard December 20, 2018
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Machine gun kelly also known as #1 FuckBoy.
the action of delaying or slowing the progress or development of something.
In other words mentally handicap aka retarded. Very slow.
"Ooo noo how did MGK get in here!? "
"Idk but keep him away from me pls"
"I heard he fucks little kids"
"Wow def a pussy"
"Should get fuckboy tattooed"
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