m00f

1st meaning: the sound that a dogcow makes.
2nd meaning: an expression or gesture of greeting.

"m00f" comes from the purposeful misspelling of the l33t word "m0f0", meaning "motherfucker".

Word invented by petpetnip on www.neopets.com as a substitute for the word n00b; users were getting n00b confused with newbie.

A m00f is an irritating/annoying person who spams, scams, cheats, steals, or does anything unsavory. A m00f is ignorant.

A m00f is a word made up by me and some other people on Neopets.com (Petpetnip didn't make it up, although he was there when it was made up... I made up "moof" and then someone else added the zeroes) and it was made as a substitute word for "n00b", which sounds too much like it meant "newbie". Basically it means an idiot, or someone who is very annoying.

An illiterate or n00b who spams. Derived from n00b.

The adding of cock (aka; the peni) to the (of moof,m00f)