In 1726, Jonathan Swift wrote in Gulliver’s Travels: “when they [horses] belonged to persons of quality, employed in travelling, racing, or drawing chariots, they were treated with much kindness and care, till they fell into diseases, or became foundered in the feet, but then they were sold, and used to all kind of drudgery till they died, after which their skins were stripped and sold for what they were worth, and their bodies left to be devoured by dogs and birds of prey.” In this presentation I challenge approaches to, and definitions of, ableism that confine it to the ‘human,’ and I do so by bringing animal studies and disability studies together to explore some of the many questions raised by Swift’s satire on the state of English equines during the eighteenth century. Focusing specifically on one type of horse at the bottom of the human and equine hierarchy, the carthorse, I examine the interwoven definitions of ‘disability,’ ‘disabled,’ and ‘deformity’ in relation to equines while thinking about other ableist labels that conflate equine and human under a broad, cross-species system of oppression. This system, I argue, was highly gendered, using period views towards women on society’s fringe to construct ideas of and treatment towards labouring equines. In turn, I argue, the nature of eighteenth-century ableist labels and behaviours creates and promotes ideas of who is good to be good to and who is good to mistreat, while actively constructing often violent mistreatment as expected, ‘normal’, and based upon a naturalized language influenced by period medical knowledge and moral codes. In other words, animals and humans of the eighteenth century existed within a larger ecological community where multiple species, and beings with diverse abilities and body types, were influenced by discriminatory thought that determined who was worthy of life, who should die, and who should be included under the category of cared for.