gybePronunciation: /dʒʌɪb/ (US jibe) SailingDefinition of gybe verb [no object] change course by swinging the sail across a following wind. [with object] swing (a sail or boom) across a following wind. (of a sail or boom) swing or be swung across a following wind. noun an act or instance of gybing. Origin: late 17th century: from obsolete Dutch gijbengybe in other Oxford dictionaries Definition of gybe in the US English dictionary