舞まい込こむ

godan verb (-mu), intransitive verb

come fluttering in; come dancing in

Describes light objects like leaves, petals, or snow being carried in by the wind or drifting inside. The verb emphasizes a gentle, floating motion.

• 窓まどを開あけると、桜さくらの花はなびらが舞まい込こんできた。

  When I opened the window, cherry blossom petals came fluttering in.

• 風かぜに乗のって枯かれ葉はが部屋へやに舞まい込こんだ。

  Dead leaves came dancing into the room on the wind.

godan verb (-mu), intransitive verb

drop in unexpectedly; happen unexpectedly

Used for unexpected visits, sudden opportunities, or chance events that arrive without warning. Often carries a slightly positive or neutral tone, like a pleasant surprise.

• 突とつ然ぜん、昔むかしの友ゆう人じんが家いえに舞まい込こんできた。

  Suddenly, an old friend dropped in at my house.

• 思おもいがけない仕し事ごとの依い頼らいが舞まい込こんだ。

  An unexpected job offer came my way.