Pronounced just like it is written. This is usually accompanied by curling and straightening the index finger repeatedly at the person who is getting me-coy-moyed.
A phrase accompanied by a finger movement which is the last word when someone is complaining or whining. An "I told you so" phrase also.
Tamica is whining about her no good boyfriend whom you warned her about the first time she mentioned him.
Tamica: Yo, Davon be cheatin on me. He no good.
Sherese: Me-coy-moy.........(accompanied by finger movement)