1 definition by notmobert
Acronym for Mandatory Ugly Fat friend. Every hot girl has one, if you find one that doesn't have a MUFF:
1. You are a moron, look harder
2. She IS the MUFF, and youre still a moron
3. She is a succubus, the only exception to the rule, stay the hell away from her, she'll ruin your life
1. You are a moron, look harder
2. She IS the MUFF, and youre still a moron
3. She is a succubus, the only exception to the rule, stay the hell away from her, she'll ruin your life
by notmobert March 25, 2004