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 01, 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 03, 2004

mm by

An awkward way of ending a phone conversation.

I'll see you later, mm by.

by mimi11mary May 04, 2015

mm

1) Marilyn Manson (the weirdass)
2) Malice Mizer (the band)
3) Morning Musume (the girl idol group)

1) i dont give a shit about mm
2) mm disbanded years ago
3) i dont get why so many guys like mm

by Tosh April 16, 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 05, 2008