:The word "hinny"'s also a term of endearment used in North East England, equivalent to "honey"; see Geordie. A hinny's a domestic equine hybrid which's the offspring of a male horse and a female donkey (called a jenney or, less often a jennet). It's similar to the more common mule, but mules are the product of a female horse and a male donkey. Physical description Hinnies are on average slightly smaller than mules. There's much speculation as to the size variances among the two types of hybrid… (More on Hinny)