ぶんぶん

adverb, adverb taking the 'to' particle

buzz; hum

Mimetic word for a low, continuous buzzing or humming sound, such as an insect or motor.

• 蚊かが耳みみの近ちかくでぶんぶん飛とんでいる。

  A mosquito is buzzing near my ear.

• 冷れい蔵ぞう庫こがぶんぶんと音おとを立たてている。

  The refrigerator is humming.

adverb, adverb taking the 'to' particle

shake vigorously; shaking

Describes shaking something with force or energy, often with a continuous motion.

• 犬いぬが体からだをぶんぶん振ふって水みずを飛とばした。

  The dog shook itself vigorously and splashed water everywhere.

• 彼かれは首くびをぶんぶんと横よこに振ふった。

  He shook his head vigorously from side to side.