1 definition by aguido

Something that is very ugly. Hence, it is ugly as mud.
"Dirty, smelly, ugly"

OR

When someone does something really dumb and it's not cool at all.
"BOY: You see that girl over there?
she's not wearing makeup today.

GIRL:OMG, she's so mud without it."

That guy tried to do a back-flip and he smashed his face in.
He's mud.
by aguido June 13, 2010
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