kicker

1. One who kicks.
2. One who takes kicks.
3. A placekicker: a player who kicks the football during free kicks, kick offs, field goals, and extra point tries.
4. The kicking strap.
5. An outboard motor. (informal)
6. An unexpected situation, detail or circumstance, often unpleasant, serving as a punchline or clincher. (colloquial) · John wants to climb the wall, but the kicker is that it is thirty feet tall.· Tuition is free; the kicker is that mandatory room and board costs twice as much as at other colleges.
7. An enticement for investors, e.g. warranty added to the investment contract.
8. An unpaired card which is part of a pair, two pair, or three of a kind poker hand. · Jill's hand was two pair, aces and sevens, with a king kicker.

Plural kickers