Question

Jim smiley's frog is defeated because

Answer 1

Smiley bets a stranger that his frog can beat any other frog. The stranger takes the challenge. So Smiley goes off and catches a frog in the marsh for the stranger.
When Dan'l Webster loses the jumping contest, smiley is puzzled until he picks up Webster and the frog burps up some quail shot. Then he realizes he has been cheated. 

Answer 2

He has been filled with heavy quail shot. :D
I had the same question :)