Fish Leg?

I was having dinner with Aidan beside me. He looked over and saw a fried fish on my plate. He happily pointed to the fish & said "Fish, fish". Then he pointed to the tail and said something I didn't quite catch. He repeated the word and pointed to his leg. Then it hit me! He said, "Leg". Not knowing that it's called a "tail", he pointed to the fish's tail and said, "leg!" haha! So cute.