A greymy is ripped straight out of mean girl. She’s popular, attractive, and physically and verbally abusive girl and it doesn’t help that she’s so busty but besides all that if you ever get the chance to be in her life take it because once you get to know her well you’ll see theirs so much more to her besides her looks and Attitude.
Popular slang that emerged in West London schools as a way of expression of profound personal appreciation of any object, person or action in 2006 / 7.
Tyrelle: Aw man, dat girl was greazy, blud.
Roshane: Greazy? Nah man, nah you should see mi PS3 blud, *dats* greazy.