Leader, boss. A term mainly used to describe one stronger than oneself.
Grunt1: Before we decide to rob this bank, let's wait for my malefactor.
by Guy in the ATM line August 07, 2006
1 more definition
Synonym for "motherfucker" used on social media websites that discourage profanity.
That malefactor re-posted my joke as his own.
by bgparker October 05, 2010