crooperdooper Share definition Flag Vulgar language used as an exclamatory when in anger or rage. Used to describe someone as a person of low intelligence or unappealing facial features. "Ouch! My toe!! Crooperdooper!" "Get out of here, you crooperdooper!!" crooperdooper by BigSexiFunTyme October 14, 2017 Get the crooperdooper mug.