Plops is a horse that Tina gets assigned to at Horsing Around Riding Center by Doris in "The Horse Rider-er." He is one of the center's more challenging horses and Tina is assigned to him because she demonstrated a vast knowledge of horses in front of the other riders. Tina struggles to become acquainted with him and has trouble trying to ride him. After Tina gets thrown off him while riding, he is reunited with Doris back at the center.
- Is named Plops because he frequently defecates.