[1] : The Collaborative International Dictionary of English v.0.48

crunch \crunch\ kru^nch, v. i. imp.  p. p. crunched
   kru^ncht; p. pr.  vb. n. crunching. prob. of
   imitative origin; or cf. d. schransen to eat heartily, or e.
   scrunch.
   1. to chew with force and noise; to craunch.
      1913 webster

            and their white tusks crunched o'er the whiter
            skull.                                --byron.
      1913 webster

   2. to grind or press with violence and noise.
      1913 webster

            the ship crunched through the ice.    --kane.
      1913 webster

   3. to emit a grinding or craunching noise.
      1913 webster

            the crunching and ratting of the loose stones. --h.
                                                  james.
      1913 webster
see also:
crunched crunching 

Crunching >> C Words
Crunching, definition of term: Crunching
crunching_pag1.html