showjump
n.— «On this occasion there will be five or six couples, graduates as they are called, who will be presented to Jenelle Waters, well known showjump rider.…On September 17-18 Nyngan will host the area showjumping competition.» —“All in readiness for ball” by Mary Dutton Nyngan Observer (Australia) Aug. 18, 2005. (source: Double-Tongued Dictionary)