Source : Webster's Revised Unabridged Dictionary (1913)

Chomp \Chomp\, v. i.
   To chew loudly and greedily; to champ. [Prov. Eng. & Colloq.
   U. S.] --Halliwell.

Source : WordNet®

chomp
     n : the act of gripping or chewing off with the teeth and jaws
         [syn: {bite}]
     v : chew noisily; "The boy chomped his sandwich" [syn: {champ}]

Source : Free On-Line Dictionary of Computing

chomp
     
         To {lose}; specifically, to chew on something of
        which more was bitten off than one can.  Probably related to
        gnashing of teeth.
     
        See {bagbiter}.
     
        A hand gesture commonly accompanies this.  To perform it, hold
        the four fingers together and place the thumb against their
        tips.  Now open and close your hand rapidly to suggest a
        biting action (much like what Pac-Man does in the classic
        video game, though this pantomime seems to predate that).  The
        gesture alone means "chomp chomp" (see {Verb Doubling}).  The
        hand may be pointed at the object of complaint, and for real
        emphasis you can use both hands at once.  Doing this to a
        person is equivalent to saying "You chomper!"  If you point
        the gesture at yourself, it is a humble but humorous admission
        of some failure.  You might do this if someone told you that a
        program you had written had failed in some surprising way and
        you felt dumb for not having anticipated it.
     
        (1996-06-01)