ポキッと

adverb

with a snap; snappingly

Mimetic adverb describing a light, crisp snapping or breaking sound, like a thin stick or a biscuit breaking cleanly.

• 枝えだをポキッと折おった。

  I snapped the twig with a clean break.

• クッキーをポキッと半はん分ぶんに割わった。

  I snapped the cookie in half.