Webster’s Revised Unabridged Dictionary · 1913
Crunch
Crunch (krŭnch), v. i. [imp. & p. p. Crunched (krŭncht); 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.
And their white tusks crunched o'er the whiter skull. Byron.
2. To grind or press with violence and noise.
The ship crunched through the ice. Kane.
3. To emit a grinding or craunching noise.
The crunching and ratting of the loose stones. H. James.
Crunch, v. t. To crush with the teeth; to chew with a grinding noise; to craunch; as, to crunch a biscuit.