親おやフラグ

noun

parent intrusion flag; parent alert

Internet slang used by streamers to signal that a parent has entered the room, often prompting a change in behavior or topic.

• 配はい信しん中ちゅうに親おやフラグが立たったので、急きゅうに敬けい語ごになった。

  A parent flag went up during the stream, so I suddenly switched to polite speech.

• 「親おやフラグ注ちゅう意い」とチャットに流ながれた。

  A warning about a parent flag appeared in the chat.