noun
outfield bleachers; outfield seats
Baseball term for the seating area beyond the outfield fence. Also used figuratively for a position of non-involvement.
外野席でホームランボールをキャッチした。
I caught a home run ball in the outfield bleachers.
彼はいつも外野席から文
He's always complaining from the sidelines.
noun
Figurative use derived from the baseball sense, referring to someone not directly involved in a situation, often with a nuance of being uninformed or offering unsolicited opinions.
外野席の意見は気にしないでください。
Please don't mind the opinions of outsiders.
彼は会議ではいつも外野席だ。
He's always an onlooker in meetings.