ぶつくさ

adverb

grumbling; muttering complaints

Describes the act of complaining or muttering discontentedly, often under one's breath. Frequently used with verbs like 言う or つぶやく.

• 彼かれはいつもぶつくさ文もん句くを言いっている。

  He's always grumbling complaints.

• ぶつくさ言いわずにさっさとやりなさい。

  Stop muttering complaints and just get it done.