Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Psychology, psychiatryFreudian slipˌFreudian ˈslip noun [countable] MPsomething you say that is different from what you intended to say, and shows your true thoughtsExamples from the CorpusFreudian slip• Perhaps not letting you know the party was off was a Freudian slip. ldoceonline.com