:The word "hinny" is also a term of endearment used in North East England, equivalent to "honey"; see Geordie. A hinny is a domestic equine hybrid which is the offspring of a male horse and a female donkey (called a jenny or, less often a jennet). It is 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 is much speculation as to the size variances among the two types of hy… (More on Hinny)