(chiefly UK, informal) A quick collection of money from a group of people, usually for a beneficial purpose.

(idiomatic) To do something extremely quickly and perfunctorily.

(transitive) To remove something (especially an item of clothing) with a swift movement.

(politics) Within a legislative body, a member appointed by a political party and given the authority to ensure that all members of that party participate in voting and vote strictly as directed by the party in all votes where adherence to a party line is required.

(politics) In the Westminster parliamentary system, a vote by members of a legislative body in which the members are strictly required to vote as directed by the leadership of their political party.

(transitive) To pull something out with a sudden jerk. / (transitive, informal) To complete or produce rapidly.

An outdoor children's game in which participants try to maintain hold of hands as random movements by the leader at the head of the line increase the force at the tail, as with the end of a whip.

(figuratively) To make harsh demands in a position of leadership.

Alternative form of crack-the-whip

With the utmost haste.