Mudder Fudger

(n) a common term for a complete asshole. one who 'fudges mudders'. a not nice guy. typically used in place of mother fucker when young children, sensitive elderly, or your boss (especially when refering to your boss) are present

Tom: This isn't working Lisa, you're just too clingy.
Lisa: but it's Valentines Day!
Tom: Your point?
Lisa: You Mudder Fudger!