Grandfather Frog in "Grandfather Frog's Big Mouth Gets Him In Trouble"

But you can't put anything more into a thing already full, and Grandfather Frog's stomach was packed as full as it could be of foolish green flies. There the fish stuck, and gulp and swallow as hard as he could, Grandfather Frog couldn't make that fish go a bit farther. Then he tried to get it out again, but it had gone so far down his throat that he couldn't get it back. Grandfather Frog began to choke.