Answer:
It is probably the most laidΒ-back member of the animal kingdom.
What can honk without a horn?
I'm a giant lizard that can grow up to 10 feet long. I have a forked tongue and live on an island. What am I?
It can be white or blue or black, Humped or have a horn. And when it talks it sings its menuets, as it's travelling the depths.
A spent round or a slimy critter.
What never gets any wetter no matter how hard it rains?