talk out of turn
不按顺序说话；冒冒失失发表意见或评论；说话不得体或不合时宜；出言不逊
口语·指插嘴或失礼发言
英文释义
to speak without permission or interrupting, especially in a way that is inappropriate or untimely
例句
Sorry for talking out of turn, but I have an important point.
典故来源
源于正式场合的发言顺序，指在不该说话时发言。