slip of the tongue ------- 口誤(成語)
英文釋義 (IDIOM) To say something by mistake; to make a mistake or reveal a secret without intending to do so.
例句 Yesterday my brother made
a slip of the tongue and called his new girlfriend by the name of his former girlfriend.
昨天,我兄弟出現了
口誤,用前女友的名字稱呼他的新女友。