横よこ槍やりを入いれる

expression, ichidan verb

interrupt; butt in; cut in

Used when someone interjects or interferes in a conversation, plan, or activity, often with an unwanted opinion or criticism. Literally 'thrust a side spear'.

• 会かい議ぎ中ちゅうに彼かれが横よこ槍やりを入いれてきた。

  He butted in during the meeting.

• 人ひとの話はなしに横よこ槍やりを入いれないでください。

  Please don't interrupt when someone is talking.