One you is obsessive about the amout of muff they recieve. They are usually large drug abusers and have dominatrix tendencies. They don't care how they get the muff they just want it, and if you havent figured it out yet Muff is a slang word for Vagina.
"Ive munched over a hundred muff's this week, my doctor says I'm a Muff'O'Maniac."
by Jesus Hernandez September 07, 2004