Say nothing; keep your mouth shut. Often shortened to ‘zip it’.
I saw Kevin put sneezing powder in the staff room but he told me to zip my lip about it or it would spoil the joke.
USA, 1940s. Deriving from the allusion to closing a garment with a zipper.
Worldwide, but most common in the USA.
A B C D E F G H I J K L M N O P Q R S T UV W XYZ
AdageAgreementAmericaAnimalsAphorismAustralian originBiblicalBlueBodyBrass tacksBuildingBusinessChildhoodChildrenClicheClockClothesCockney rhyming slangColourComedyConflictCountryCrimeDanceDateDeathDisgustDrinkEducationEffortEmotionEuphemismExcellenceExcessFailureFamilyFirst worldFoodFrenchFruitGreek originHabitHairHappinessHonestyHousehold itemsHyperboleLanguageLatinLegalLocationLuckMadnessMedicalMilitaryMisfortuneMoneyMusicNameNatureNauticalNonsenseNumberPatiencePlaceProverbProverbialReduplicationRelaxationReligionRiskScienceSecretsSexShakespeareSlangSportStupiditySuccessSurpriseTechnologyThe human bodyTheatreTimeToolTravelTrickeryVehicleWaterWeatherWork
Suggest a new idiom