The act of losing control in an irational and beast like manner. Often around food and people you dislike.
by goobers9346 August 18, 2009
Is a term used to describe a teen that didn't just hit puberty, he beat the shit out of it. When a person is called man beast, it is usually because he hit puberty before a lot of other teens.
by Lalalalala69 February 20, 2014