shoot your mouth off (about something)
成語所屬單字mouth
shoot your mouth off (about something) — 慣用語
1. To talk about something in a way that shows too much pride or reveals too much.
1.慣用語
釋義
吹噓；亂說
To talk about something in a way that shows too much pride or reveals too much.
例句
He shot his mouth off about his new car.
Don't shoot your mouth off about the secret plan.