A Whip

1. A lash; a pliant, flexible instrument, such as a rod (commonly of cane or rattan) or a plaited or braided rope or thong (commonly of leather) used to create a sharp "crack" sound for directing or herding animals.

• The same instrument used to strike a person or animal for corporal punishment or torture.

2. A blow administered with a whip.
3. (hunting) A whipper-in.
4. (politics) A member of a political party who is in charge of enforcing the party's policies in votes.
5. (UK politics, with definite article) A document distributed weekly to MPs by party whips informing them of upcoming votes in parliament.
6. Whipped cream
7. (nautical) A purchase in which one block is used to gain a 2:1 mechanical advantage.
8. (African-American Vernacular) A mode of personal motorized transportation; an automobile, all makes and models including motorcycles, excluding public transportation.
9. (roller derby) A move in which one player transfers momentum to another.
10. A whipping motion; a thrashing about.
11. The quality of being whiplike or flexible; suppleness, as of the shaft of a golf club.
12. Any of various pieces that operate with a quick vibratory motion

• A spring in certain electrical devices for making a circuit
• (music) A wippen, a rocking component in certain piano actions.

13. (historical) A coach driver; a coachman.

(last for directing animals): crop (especially for horses), dressage whip (especially for horses), driving whip (especially for horses), jumping bat (especially for horses), flail, knout, lash, quirt, scourge, sjambok (South African), thong

(lash for corporal punishment): cat (nautical), flail, knout, lash, quirt, scourge, sjambok (South African), thong

(political party enforcer): party whip