zgrzytać

Etymology
.

Verb

 * 1)  to grind, to scrape, to rasp, to grate
 * 2)  to roar; to howl
 * 3)  to grunt
 * 4)  to hiss
 * 5)  to get upset; to express resentment or anger
 * 1)  to hiss
 * 2)  to get upset; to express resentment or anger
 * 1)  to get upset; to express resentment or anger
 * 1)  to get upset; to express resentment or anger

Etymology
.

Verb

 * 1)  to grind, to scrape, to rasp, to grate