What is toad of taod hall?

I'm sorry, but there is no specific character or entity known as "Toad of Toad Hall." However, there is a character called "Toad" from the popular children's novel "The Wind in the Willows" by Kenneth Grahame.

Toad, full name Mr. Toad, is a wealthy, reckless, and irresponsible anthropomorphic animal who lives at Toad Hall. He is adventurous and always craving new experiences, which often leads him into trouble. Toad's friends, Mole, Rat, and Badger, often try to keep him out of trouble and help him see the error of his ways.

The character of Toad has become an iconic figure in children's literature, known for his wild escapades and larger-than-life personality.