horsy

adj

1. Of, relating to, or similar to horses.

   “All the horses had been seized and sent to the front, but the whole place still smelt of horse-piss and rotten oats. I was at the barracks about a week. Chiefly I remember the horsy smells, the quavering bugle-calls […]”

   “Pirates, these women, with their ladylike briefcases for the loot and their horsy, acquisitive teeth.”

2. Involved in breeding or riding horses.
3. Clumsy, clunky, bulky, inelegant, or unrefined.

   “Near-synonym: crude”

noun

1. (childish, endearing)A child's term or name for a horse.
2. A game where a child rides on the back of another, who is on all fours.

   “When he got in the house, if I'd left him to read his newspaper in quiet, then he'd play horsey with me, riding me around the house on his back; I'd put a pillow on his back for my saddle”

   “When you get down on the floor and play “horsey”, you are giving yourself a heck of a workout – and it is fun for the kids!”

   “The best barometer of my mounting physical limitations was the game of horsy. In my stallion's prime I could pack three little boys on my back at once and do the length of the hall in no time flat.”