ぺたん

adverb taking the 'to' particle

with a soft thud; with a flat slap

Mimetic adverb describing the sound or action of something soft or flat making firm contact with a surface, often with a sense of sticking or settling. Used with と.

See also: ぺたぺた

• スタンプをぺたんと押おした。

  I pressed the stamp down with a soft thud.

• 床ゆかにぺたんと座すわり込こんだ。

  I plopped down onto the floor.