Slang dictionary


or mkay [m-key]

What does mmk mean?

Mmk is a casual, half-humming way to say OK. It is a versatile sound, used to express mild disproval and suspicion … or warm affirmation. Be careful, though, as mmk can come across as a little patronizing or rude.

Related words

hunh, 🤔 Thinking Face emoji, I mean

Where does mmk come from?


People have probably been voicing mmk as long as OK has been around (which is 1839). It’s just that these sorts of informal sounds don’t always get written down early on.


We can find mmk, though, as mkay on a South Park Usenet group in 1998. This is no coincidence, though, as South Park features a recurring character, a school counselor named Mr. Mackey, whose catchphrase is a droning mkay. This mkay mocks the way educators and other school professionals can issue mmk as a kind of filler or tag question, meant to ensure comprehension but sometimes overused to the point of meaningless and irritation.

1999 further popularized mmk thanks to the 1999 cult comedy Office Space, where stereotypical office manager Bill Lumbergh (Gary Cole) ends his demands with a mmk. Lumbergh’s mmk is meant to soften his unrealistic work requests but it only comes across as grating, condescending, and defeating.

Examples of mmk

Lets not lurk on my profile mmk booboo
@yungcurly2, December, 2016
Too hilarious. Salute to the moms who are down enough to hang but still bawsy enough to demand that respek, mmk?
Sarah Michel, VH1, December, 2017
meme generator you know that Maris is in the MMK this coming Saturday episode? are you gonna watch it? #askjames
@chrstinmscs, December, 2016

Who uses mmk?

When not alluding to the catchphrases of Lumbergh or Mr. Mackey, mmk is used in everyday speech and writing as a way to say OK. It does have specific behavior, though.

If someone begins a statement with mmk, they might be puzzling over something or focusing in on a task or problem (e.g., Mmk. I know I had my phone just a minute ago, but where did I leave it?). If someone ends a statement with mmk, they might be making sure someone understands something or be trying to comfort someone (e.g., I know you had a rough day, but tomorrow is new one, mmk?).

Online, the tone of mmk can be harder to figure out, especially as people often intend or interpret mmk with greater sarcasm, drawing on mmk‘s uses to express suspicion or dress up a demand as a request.


Mmk is not to be confused with MMK, the acronym for the popular, long-running Filipino TV drama Maalaala Mo Kaya.

Just Added

boyfriend air, Giving Tuesday, vibe check, let him cook, girlfriend effect


This is not meant to be a formal definition of mmk like most terms we define on, but is rather an informal word summary that hopefully touches upon the key aspects of the meaning and usage of mmk that will help our users expand their word mastery.