どさどさ
dosadosa

Suru Verb
To-Adverb

1. throwing down multiple objects in succession

Onomatopoeia
Related to ドサ
盛大 せいだい溜息 ためいきをつきながら、テーブルの うえにどさどさとパンを 、椅子 いすにどっかりと腰掛 こしかける。
sēdaina tameikio tsukinagara tēburuno ueni dosadosato pan'o oki isuni dokkarito koshikakeru.
Heaving a great sigh I plunk my bread on the table and flump onto the chair.
Suru Verb
To-Adverb

2. at once in great numbers