わらわら

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

bustling; shuffling; squirming; creepy crawly

Mimetic word describing many small things or creatures moving around in a lively, restless, or slightly unsettling way. Often used with と or as a する verb.

• 公こう園えんには子こどもたちがわらわらと集あつまってきた。

  Children came bustling together in the park.