What's the sound of one hand clapping?

The sound of victory.
The sound of one individual being forever alone.
The sound of two hands causing friction among each other.

Must I go on?

one hand clapping is snapping your fingers XD

I can actually clap with one hand. Yeah, that's how awesome I am. X)

No, seriously though, I can. Just close your hand, but you've gotta do it really quickly.

It sounds something like this: