WhipThis article does not concern whip (implement) or walks plus hits per inning pitched.
In politics, a Whip is a member of a political party grouping in a legislature whose task is to ensure that members of the party attend and vote together. The term originated in the Parliament of the United Kingdom and derives from the "whipper-in" at a fox hunt. Whip is also used to mean the voting instructions issued to members by the Whip.
In the UK Parliament the importance of a vote is indicated by underlining of items on the whip paper. Disregarding a "three-line whip" is a serious matter and may result in "withdrawal of the whip", which is a form of expulsion from the party.