shoot your mouth off
US /ʃuːt jʊər maʊθ ɔːf/
UK /ʃuːt jʊər maʊθ ɔːf/
1.
乱说话, 大嘴巴
to talk too much, especially in a boastful or indiscreet way
:
•
He tends to shoot his mouth off after a few drinks.
他喝了几杯酒后就喜欢乱说话。
•
Don't shoot your mouth off about the surprise party.
别大嘴巴把惊喜派对说出去。