I went up against a horse named Banana Boat at a show once. I've had two that were pretty bad myself. My QH mare's dam was Mary's Dividend, so her registered name was Carrie, MD. I always thought it sounded like the PA at the hospital every time we went in the ring. Paging Dr Carrie. Dr Carrie, please report to the ring", lol. The other one was Deli. She was a rescue, and didn't have a show name. Told my trainer to make one up when she went to sign me in and forgot about it, and when I went into the ring I nearly fell off laughing. She had stopped outside the gate to go to the bathroom, and then she was announced as "Fresh From the Deli"!
"Keep a leg on each side and your mind in the middle"