Kickback

She was pushing the drug so hard, I swore she must be getting some kind of kickback.

Kickbacks work the triceps muscle at the back of your arm. Exercising these muscles helps eliminate arm jiggle.

Central to his [Yury Skuratov's] investigation were kickbacks supposedly paid by a Swiss construction company for contracts to restore government buildings, including both houses of parliament.

You sell cars and help arrange car insurance for buyers. Insurance brokers pay back part of their commissions to you for referring customers to them. You must include the kickbacks in your income.

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.