Adjective
(rare) Of or pertaining to hides.
Of coffee: having a characteristic leathery taste.
Source: en.wiktionary.orgThere's just some kind of men you have to shoot before you can say hidy to 'em. Even then, they ain't worth the bullet it takes to shoot 'em. Harper Lee
Most people dis Howdy & Hidy (and most mascots on you list) but I think they are awsome! Source: Internet