kicker

One that kicks.

A sudden, surprising turn of events or ending; a twist.

A tricky or concealed condition; a pitfall.

A condition that imposes an automatic increase, as in a pension plan.

A small outboard motor.

One who or that which kicks.

One who offers strong, and especially unexpected or perverse, opposition; one who objects or opposes; a bolter.

Nautical, the propeller of a small launch.

In cricket, a ball which kicks or bumps, that is, which rises higher than usual after pitching.