2010, Christina T. Loguidice, ‎Bill Loguidice, Wii Fitness For DummiesKickbacks work the triceps muscle at the back of your arm. Exercising these muscles helps eliminate arm jiggle.
(uncountable, firearms, machinery) Recoil; a sudden backward motion, usually in the direction of the operator.
(countable, machinery) An accident wherein an object being cut by a rotatingblade or disk, such as a circular saw, is caught by the blade and thrown outward
(oil drilling) A dangerous buildup of gas pressure at the wellhead
(countable, bowling) The board separating one bowlinglane from another at the pit end
1973, Doug Anderson, Pinball Wizard (in Texas Monthly volume 1, number 7, August 1973, page 84)We've come a long way since then. The progeny of that nail have been bent and twisted into what we all know and love as roll overs, kickbacks, and thumper-bumpers.