Top Definition
male ejaculation, derived from cum being spelled backwards
EW this sheet has muc on it!
by norbert April 13, 2003
Manly Ugly Cunt. either a male or female that possess cunt-like personalities
Are you kidding me she's a total M.U.C.
by calisto May 24, 2008
In reverse

.duilf lanimeS
trihs ym no muc
by Gumba Gumba March 15, 2004
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