| \geep\ | noun 1. the hybrid offspring of a goat and a sheep. | | Quotes | One of his goat-plus-sheep chimeras, known colloquially as a geep, was featured on the cover of Nature. -- Ian Wilmut, Keith Campbell, and Colin Tudge, The Second Creation: Dolly and the Age of Biological Control, 2000 | | Origin | | Geep is a portmanteau from the 1970s that combines the words goat and sheep. | |