kickback

noun

• A backward kick, a retrograde movement of an extremity.
• A covert – often illegal – payment in return for a favor consisting of providing an opportunity of chargeable transaction.
• (machinery) Recoil; a sudden backward motion, usually in the direction of the operator.
• (machinery) An accident wherein an object being cut by a rotating blade or disk, such as a circular saw, is caught by the blade and thrown outward.
• A dangerous buildup of gas pressure at the wellhead.
• The board separating one bowling lane from another at the pit end.
• In contract bridge, an ace asking convention initiated by the first step above four of the agreed trump suit.
• A feature that saves the ball from draining and propels it back into play.
• A relaxed party.