どっぴゅ

adverb, adverb taking the 'to' particle

sound of something being powerfully ejected

Onomatopoeic or mimetic word describing a forceful ejection sound, often used with と.

• 水みず鉄でっ砲ぽうから水みずがどっぴゅと飛とび出だした。

  Water shot out of the water gun with a powerful squirt.