Friendly way of saying Fuck Muffin. Formed by switching the m and the f. Used often as a substitute for the yelling "shit!"
by My Diablo Man January 14, 2011
Get the Muck Fuffinmug. Get the Muck Fuffinmug. Get the Muck Fuffinmug. Get the Muck Fuffinmug. We'll email you a link to sign in instantly.