Mk is the slang used for saying Okay or "you okay" in a question. So say you asked someone to pick up onions, you would say "Pick up some onions, mk?"
You pronounce and say it the way that the M is not pronounced like the alphabet, but the way it would be pronounced in a word, for example the M at the beginning of Megan. The K is pronounced the alphabet way, however, i.e. not in the way you would say "kite". It also can be used to ask someone to do something, as in "Pick up Tommy, mk?" Instead of "Can you pick up Tommy?"
You pronounce and say it the way that the M is not pronounced like the alphabet, but the way it would be pronounced in a word, for example the M at the beginning of Megan. The K is pronounced the alphabet way, however, i.e. not in the way you would say "kite". It also can be used to ask someone to do something, as in "Pick up Tommy, mk?" Instead of "Can you pick up Tommy?"
by CallMeCorbett April 3, 2011
a shortened version of mike kachowski
by @mikekachowski November 5, 2016
An abbriviation of the name Mihael Keehl, which is the real name of the character Mello in the anime/manga, Death Note.
Person 1: DUDE! MK died in the Death Note episode last week!
Person 2: MK?
Person 1: Mihael Keehl!
Person 2:....Who?
Person 1:...Mello. Retard.
Person 2: MK?
Person 1: Mihael Keehl!
Person 2:....Who?
Person 1:...Mello. Retard.
by Mero-cakes July 26, 2008
by imacarnie July 24, 2005
by amanda December 25, 2003
by high5er April 22, 2010