kickback in Polish

(countable) A backward kick; a retrograde movement of an extremity.

(countable, informal) A covert, often illegal, payment in return for a favor consisting of providing an opportunity of chargeable transaction; especially, a kind of quid pro quo in which if you (an insider) secretly help me (an outsider) win the bid for the contract then I will secretly send you a portion of the contract value; thus, a kind of bribe.

(uncountable, firearms, machinery) Recoil; a sudden backward motion, usually in the direction of the operator.

(oil drilling) A dangerous buildup of gas pressure at the wellhead.

(countable, bowling) The board separating one bowling lane from another at the pit end.

A relaxed party.