1. Someone who's just utterly pathetic, bit of a moron.
2. Used in context do describe a mate saying how silly they are in a joking way.

See also wasteman and noob
Emmie: Hey you two guess what?
Tanya: What?
Dan: What
Emmie: BEEF WEAKSS!
by DanJn_n November 1, 2010
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Failing to meet womens expectations; may result from inadequate performance, unsatisfied desire, early explosion, engulfing bush in combination with chode and/or excessive foreskin; sexual equivalence with weak sauce.
Mikey T's weak beef led to multiple dates ending in excessive rants of hysterical laughter.
by 67gt500 November 26, 2010
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