it means something like "Did you get it?" "Is it clear what I'm saying?" with a slight undertone of threat.
"I don't need your advice, m'kay?"
by atuma July 14, 2006
Get the m'kay mug.
Euphemism for fu*k, pioneered by the creaters of that most heinous of cartoons Southpark ;)
Instead of saying Fu*k instead say M'Kay!
by Chancer October 2, 2003
Get the M'Kay! mug.
In forums, m'kay is the word to use when you don't want to say "fuck".
I think you should go m'kay a tree!!
by kim November 28, 2004
Get the m'kay mug.
m'kay! is used as another word for okay.
m'kay! is mostly used by Mr. Garrison off of the South Park show.
Mr. Garrison:"drugs are bad don't do drugs m'kay!"
by jordanna April 7, 2006
Get the M'Kay! mug.
Ryan Seacrest:Attention everybody M'Kay!
his mother: put your helmet on and leave!!!!
by icanread-dog April 10, 2006
Get the M'Kay! mug.
to sya instead of the word f*ck
john just got screwed becouse he lost a check for 50 dollars.
john: "m'kay"
by herby December 1, 2003
Get the M'Kay! mug.
Also spelled: Mmmmmm Kay`?
White trash slang for "O.K." or "Alright"

Having nothing whatsoever to do with young urban or hip-hop culture.
Usually associated with a sarcastic answer to a question or statement.
"Cletus...I'm going down to the Piggly Wiggly to spend these foodstamps m'kay`?
by WMC April 25, 2007
Get the m'kay mug.