Term made popular by the "Fugly Horse of The Day" blog, aslo known as "FHoTD". A play on the word "homozygous" which "refers to a horse that has two of the same dominant gene (usually a Paint Horse coat pattern)"

hideozygous means: Horse with a roman nose, short neck, straight shoulder, flat back, post legs, herring gut, sickle hock, pig eyes, parrot mouth, tiny hooves, upside-down neck, no hip, 'nest' or otherwise conformationally deficient or unattractive; used for breeding simply because the horse is a "guaranteed color producer".

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