Whip

In music, a whip or slapstick is a clapper (percussion instrument) consisting of two wooden boards joined by a hinge at one end. When the boards are brought together rapidly, the sound is reminiscent of the crack of a whip. It is often used in modern orchestras, bands, and percussion ensembles.

There are two types of whips. The first has two planks of wood connected by a hinge, with a handle on each. The percussionist holds the instrument by the handles and hits the two pieces of wood together, creating a loud whip noise. The other type also has two planks of wood, one longer than the other, with one handle, connected with a spring hinge so it can be played with just one hand, though it cannot produce sounds as loud as a whip requiring both hands. This second type of whip is technically a separate instrument called a slapstick.