craunch

Etymology
See.

Verb

 * 1)  To crush with the teeth; to chew with violence and noise; to crunch.

Noun

 * 1)  A grinding or crunching sound.
 * 2)  A portion of a stratum or vein left in excavating to support the roof.
 * 1)  A portion of a stratum or vein left in excavating to support the roof.