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1.
moy
An immature male.

At first you think he's a man, but he's really just a boy.
He may be able to talk intelligently about the social impact of Death Cab for Cutie or knows five different languages, but, look! He just pinched that other girl's ass! What a moy.
by Peppermintlisa January 04, 2006
 
2.
Moy
1. superfly
2. pretty fly
3. flipping amazing
That basketball player just denied that sucker. That's pretty Moy.
by mathlete88 June 25, 2009
 
3.
moy
1. The sound a soy cow would make.
2. Slang for Soy Milk
1. The soymilk cow says,"Mooooy".
2. Damn, this moy sure was good!
by Squish and Squimmy January 25, 2004
 
4.
moy
1. Not punctual; slow as hell.
2. Dumbass.
3. Touch and Go
Damn what's taking so long? Oh, he's pulling a moy again.

Yo Moy. What did you say about my mama!?!?

Lost again. F' the map, just moy it!
by Sultan Of Twat May 24, 2004
 
5.
Moy
A name synonymous with a heavy drinker
Dude 1: Did you hear about what that girl did last friday night?
Dude 2: Yea. She's such a Moy.
by Sir Drips Alot August 01, 2011
 
6.
MOY
Money Ova You, started by chip tha ripper in his song "Money Ova You"
"MOY nigga money ova you" - Chip Tha Ripper
by me216 January 09, 2008
 
7.
moy
The 'spide' vocal arrangment of the word 'mummy' slang of mother.
'Oh Moy, I can't be-leef ahht!'
by Noreen and Tony April 04, 2005