MM

Short for Major Mistake.

Pete: "Greg spelled salt, salc"

Trey: "What an MM"

by Christian Pertersen January 26, 2009

mm

Used by Pagan people as a greeting on the 'net.
It means "merry meet"...

Me: mm...
You: mm!
Me: how are you?
You: I'm fine thanks.

by Ette July 1, 2003

mm

mm monkey

mm monkey

by bihwtf69 April 18, 2020

MM

2000 in Roman numerals.

MLMXXXIV =1984

XXIV = 2004

roman numerals are gay

by Gumba Gumba August 3, 2004

mm by

An awkward way of ending a phone conversation.

I'll see you later, mm by.

by mimi11mary May 5, 2015

MMS

Morning Make-up Syndrome: waking up next to a female who looks fugly without her make-up on. OR a female who wears too much make-up and looks falsely hot and looks fugly when the make-up comes off.

i was gonna t-bag this ho, but her MMS unstiffed me.

by autoreverseaudio June 13, 2004

MM

MM = "Married Man" as refered to by his lover on the side.

I'm getting together with my MM Wednesday when his wife is at work.

by The OW March 4, 2008