A sound made by combining a mumble and the last half of "OK". Represents a distracted affirmation
"Could you do this for me?"
"Mmk..."
by Randy August 1, 2004
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just another way to say "ok" . like thinking the thinking sound mmmmm + ok forms "mmk"

can be used in a positive or negative sense. by anybody.
Joe: I'll brb.
Bob: mmk.
or
Bob: I made out with your sister while you were away.
Joe: mmk.
by Sara!Jane October 20, 2005
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when someone says something u know is a lie
her: do u like him
them: NO! of course not
her: mmk suure
by the smart lynx December 3, 2019
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when your annoyed with you friend or just to lazy to respond
omg i love cats

“mmk”
by thebitchyeet December 16, 2018
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1.)what you say when you're like, ummm ok, but you dont wanna say umm ok so you say mmk...
2.)or you can say mmk when you dont know what else to say so youre just like....mmk; usually used in online chat
3.)oh and you cant say it because its mine...MINE oh and Ashleys
1.) Ryan: "so anyways, i hate that emo kid he is so friggin annoying!"
Me: (what is he talking about?) "mmk"
2.) Ryan: "so...uh hmm...im bored"
Me: "mmmmmmk"
3.) Better not use it wrong...
by brooke January 29, 2005
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To fuck deeply and very hard.
I want too mmk inside of you.
by gregoryfan83 May 31, 2018
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