Acronym for Manditory, Ugly, Fat, Friend....every girl has that one FAT friend that they always hang out with.
by Anonymous May 4, 2003

A goof or a silly person.
by MomosneakyXP April 15, 2010

the act of palming someones head in your hand and throwing their face in disrespect in the fullest. the best sort of muff is if the victim falls to the floor
by silent dreamer April 1, 2008

an Individual perceived by others to be an extreme loser or idiot. Also pertains to a person who does something stupid.
by Talon "Loosepack" Beek March 7, 2009

town/village in County Donegal, Ireland. One of the most northerly towns on the island of Ireland although it is in the south! c.f. political situation in Northern/Ireland. It is on a peninsula and belive it or not diving is popular!
by marcu December 28, 2005

by Lisa August 24, 2003

a muff is a Mandatory Ugly Fat Friend
all hot girls have a muff friend and the hotter the girl the bigger the muff shes with
all hot girls have a muff friend and the hotter the girl the bigger the muff shes with
by dan.j.washington January 24, 2009
