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2.
1. a snotty, little twit that is afraid of a little hard work and fails to pay attention in class

2. a horribly inept and undisciplined student of martial arts

3. a martial arts student that quits when more is expected of them
A murder face will never be able to fight and will never achieve greatness because all they know is how to quit.
by rositasrq March 17, 2009
 
1.
(v) To accomplish a task that would normally require hands with your penis, in the style of Dethklok bassist William Murderface... Murderface... Murderface
Hey, did you see him murderface that bass solo?!
by Timmmaaaay January 20, 2008