Baring his teeth in a mockery of a smile, he said, "In my version of that fairy tale, the wolf kicks the woodsman's ass."
Teddy might have been stronger than average, especially considering his weight and height, but Billy had more mass and was definitely stronger when it came to raw power. So Teddy tended to rely on his quickness, which made him a more difficult opponent.
Going with the fall, Teddy didn't waste time in laying there as Billy got his bearings. Instead, he rolled away and jumped into a crouch. His back legs tensed, before he sprung from his position in order to tackle Billy.