Mxm

The sound made by kissing your teeth. Equivalent to “kmt”. Mostly found in South Africa. It is dismissive and shows attitude.

Bob: “That guy just bought your girl a bottle of champagne.”

Sam: “Mxm, that boy is disrespectful.”

by M.author January 10, 2020

Mxm

Pressing your tongue against your teeth while sucking air inside your mouth to make a high pitch suction sound to express apathy towards a person or thing. This is sometimes accompanied by a dismissive flick of the hand.

Tebogo : Bruh there goes your ex-girlfriend with that new fuck-boy she's dating.

Tshepo: Mxm! Fuck that bitch.

by JoystickUp-Kid March 17, 2016

Mxm

The clicking of one's tongue to show attitude. Used in texts or online.

Jack:Your being full of shit!

Roxy:Mxm whatever!

by DJ SLENDA March 18, 2010

MxM

Male to Male sex/porn. Gay porn. Gay sex

Fathima Likes to watch MxM porn secretly

by Fookolhun July 31, 2021