pencil whip

fair crack of the whip

Let's have an equitable attempt, match, or process. Used as an appeal for reasonableness.

pencil in

To provisionally schedule.

power of the pencil

The authority to charge a punter's gambling or other bills to the casino.

smart as a whip

Very intelligent.

whip hand

An advantage over another; the dominant position.

whip into shape

To exert considerable effort to change something or someone into a desired state.

whip the cat

To attempt to get work or money from someone who is too weak or poor to provide it.

whip through

To do something extremely quickly and perfunctorily.