Its used in New york accents like my teacher she always replies mmkay even the answer should'nt be that.Mmkay is used to replicate the british word ok.Us british cannot be bothered to extened our vocabulary so lets just chill mmkay? understand mmkay.say thankyou to me mmkay?
American teacher: mmkay
Student 2: Miss he's feeling ill do you mean ok or your not bothered.
American teacher: mmkay?
Student: ok miss we will leave you now on your own
American teacher: mmkay mmmmmkay! mmaka mmkay!!