Mo is short for Homo
It is common for females to dislike being referred to as a Fag Hag because typically Hags are old, ugly, and wrinkly. Fruit Fly is also disliked at times as it is homonymous with insects of the drosophila genus (i.e. drosophila melanogaster)
Rachel - I am not a hag! I am a moho. Get it right, tool!
They know the best way to get in your pants and can sweet talk their way into anyones heart.
Gender is not usually an issue.
Guy - "Yeah I know, I did him last night."