First day slang

One slang word I learned my first day at work was from one of the kids. We were going outside and she wanted a piggy back ride. BUT she used a different word. The word she used was jockey back. One of my fellow interns and I looked at each other confused and asked her to repeat it. The word makes a lot of sense. It was just the shock of hearing something we weren't used to. So, the term "jockey back" is used here in Ireland instead of "piggy back ride".