clap up
clap together
slap together

The use of clapping two sticks together to scare away mountain lions, even though there aren't any, is taken from the 1961 film.

Her body banged against the ground, her teeth clapping together.

Two more had their heads clapped together, cartoon style.

Wings clapped together in what might have been consternation.

It consists of two long solid pieces that are clapped together producing sound.

He bent at the knees, legs clapped together, then shuddered all over.

Trishchotky - set of wooden boards on a string that are clapped together as a group.

All of Grondr's mouth parts clapped together at once.

These pieces can be clapped together at high speeds to make fast complex beats.

In this process, the wings clap together above the insect's body and then fling apart.