"Mon" is "come on" in Scottish. "The Biff" is what fans call the Scottish rock band "Biffy Clyro". Mon the biff therefor means something like "Come on Biffy Clyro". Fans scream this at concerts just before the show and in between songs.
by TheLastCrusade October 31, 2013
Get the mon the biff mug.
means the same as "shit, man" but with a Jamacian accent.
Someone wants to score a bag of reefer in Jamacia and has no idea how to. They ask the first guy on the beach with dreadlocks and he says " sheet, mon, I can help you find some"
by May Reed March 7, 2011
Get the sheet, mon mug.
male french version-means my dearest

he would be the type of guy who you would adore. he treats you right and makes love to you like a sexy beast. he would probably be your ideal guy
from Addams Family:

Gomez: Cara Mia.

Morticia: Mon cher
Gomez: Tish... that's french

Morticia: Oui
by Lola459 March 5, 2014
Get the mon cher mug.
A racial slur used by the Elf-like Eldar in reference to Humans in the grim darkness of Warhammer 40,00. In Eldar tongue, it means "Those who must be Exterminated." It also sounds like the word monkey.
You... You... DOUBLE MON KEIGH

Or

The Mon Keigh world is heavily defended. We shall launch the assault at daybreak.
by GearBoxClock July 28, 2009
Get the Mon Keigh mug.
Confirmation and or yes.
Yah mon, I have seen the new Star Wars movie.
by Ravinzman December 28, 2016
Get the yah mon mug.
Traditionally meaning 'My love' in french, but also used as an uncommon but special nickname for that one special guy whom you imagine spending the rest of your life with.
Hey Mon Amour have i told you how fantastic and gorgeous you are today?
by CuteFruit May 13, 2009
Get the Mon Amour mug.