ピチャッ

adverb taking the 'to' particle

with a splash; slap; slam

Mimetic word for a light splashing or slapping sound, often used with と.

• ピチャッと水みずがはねた。

  The water splashed with a light splat.

• 彼かれはピチャッと手てをたたいた。

  He slapped his hands together with a light clap.