horsy

Short definition from Wiktionary

Adjective

1. 1
   Of or relating to horses.
2. 2
   Involved in breeding or riding horses.
3. 3
   Clumsy, clunky, bulky, inelegant, or unrefined.

Noun

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