パシッ

adverb taking the 'to' particle

with a loud smack; whack; slap; crack; snap

Onomatopoeic word describing a sharp, loud impact sound, often used with the particle と.

• 彼かれは机つくえをパシッと叩たたいた。

  He slapped the desk with a loud smack.

• 鞭むちがパシッと鳴なった。

  The whip cracked with a snap.