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1.
A term of affection. Short for Much Love.

A way to tell someone of your adornment for them.
Very Lovey-Dovey!
Good night love!
Mulo!
<3
<3
by andy18rew December 01, 2010
 
2.
an antisocial guy
he's the big mulo i have never seen in this country
by Fugustar October 17, 2003