szczypnąć

Etymology
From.

Verb

 * 1)  to pinch
 * 2)  to nibble on grass, young twigs, etc.
 * 3)  to pinch oneself
 * 4)  to pinch each other
 * 1)  to pinch oneself
 * 2)  to pinch each other
 * 1)  to pinch each other