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clap (something) together
To slap or smack two things together, typically resulting in a clapping noise. Please clap your shoes together outside to get the dirt out of them. He clapped his hands together to the music of the band.
clap something together
to slap two things, usually hands, together so that they make a noise. The boys clapped their hands together whenever a goal was scored. One of the orchestra members clapped two blocks of wood together periodically, making a very loud noise.