シュポシュポ

adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'

pump-pump; puff-puff

Mimetic word for the rhythmic sound of pumping, puffing, or a small engine chugging. Often used with と or as a する verb.

• 古ふるいポンプがシュポシュポと音おとを立たてている。

  The old pump is making a pump-pump sound.

• 蒸じょう気き機