A joke in the traditional manner

What did the thirsty lizard say?

Three ratings from beta testers, eight, six, and six: “It’s funny,” “Pretty good,” and straight-out laughter.

The punchline is in the comments.

Related reading
All OCA jokes in the traditional or neo-traditional or non-traditional manner

[“In the traditional manner”: by or à la my dad, who was making such jokes long before anyone called them “dad jokes.” Merriam-Webster’s first citation: 1987. I continue in the traditional manner.]