ドタッ

adverb taking the 'to' particle

thud; thump

Mimetic word for a heavy, dull impact sound, often of something falling or hitting a surface. Used adverbially with と.

See also: ドタン

• 大おおきな荷に物もつがドタッと床ゆかに落おちた。

  The large package fell to the floor with a thud.