adverb
gushing out suddenly; pouring out all at once; bursting out
Onomatopoeic adverb describing a sudden, forceful outflow of liquid or similar substance. Often used with verbs like 出る, 流れる, or こぼれる.
水道の蛇口をひねると、ドバッと水が出た。
When I turned the tap, water gushed out suddenly.
袋が破れて、中身がドバッとこぼれた。
The bag tore and its contents spilled out all at once.