a slip-up that (according to Sigmund Freud) results from the operation of unconscious wishes or conflicts and can reveal unconscious processes in normal healthy individuals
例句
用作名词 (n.)
No one would have known our plans if Kay hadn't made a slip of the tongue. 如果不是凯失言，没人会知道我们的计划的。
He definitely said that he thought she was unattractive but then claimed it was a slip of the tongue. 他的确说过他认为她长得不吸引人，但事后他声称那是失言。
美
