What is the meaning of Clapper?

One who claps; a person who applauds by clapping the hands.

An object so suspended inside a bell that it may hit the bell and cause it to ring; a clanger or tongue.

A wooden mechanical device used as a scarecrow; bird-scaring rattle, a wind-rattle or a wind-clapper.

A clapstick (musical instrument).

A pounding block.

The chattering damsel of a mill.

A slapshot

The hinged part of a clapperboard, used to synchronise images and soundtrack, or the clapperboard itself.

A person's tongue.

To ring a bell by pulling a rope attached to the clapper.

To make a repetitive clapping sound; to clatter.

Of birds, to repeatedly strike the mandibles together.

A rabbit burrow.

to click (the tongue)

Source: wiktionary.org