m'kay /m(ː)ˈkeɪ/ exclamation7 •(informal) Okay—an expression of acknowledgment or affirmation, now sometimes used in an ironic or condescending sense. •(informal) spelling mkayM1: Mkay. Let me point us back to. This is related to um what we were talking about and how you’re going to um sort of report what happened here tonight. — 1995 •(informal) spelling mmkaywell i used to have some skilled sticky fingers of my own back in the day so i know a shoplifted dress when i see one mmkay. — 2004 •(informal) spelling mmmkay1999, “It's Easy, MMMKay.” [title, in soundtrack] South Park: Bigger, Longer & Uncut — 1999 •(informal) spelling m’kayI’ll tell you a secret if you promise not to tell anybody, not even the missus, m’kay? — 1999 •(informal) spelling mm-kayShe didn’t ask what that was supposed to mean, but tallied a while on her fingertips and obliged him. “Mm-kay, bye.” — 2000 •(informal) spelling mmm-kay“Well, I’m going to take a picture of your arm and then this nice doctor is going to fix it for you, okay?” “Mmm-kay.” — 2005