1 definition by Kyle Ernesti

Top Definition
muffed up means fucked up. use "muff" to replace fuck. very fun to use so you dont get in trouble by the parentals or offend the old folks. use different variations of muff too-muffer, muffing, etc.
That's muffed up dude!
Go muff yourself.
by Kyle Ernesti June 16, 2006

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