Looks like rhyming slang to me - something that rhymes with "frog and toad" that you would "hit" would be a road - it's time to hit the road or leave.
In Cockney Rhyming Slang, the slang for stairs is Apples and Pears; * We need a new carpet for the apples and pears. * Goodnight dear I'm going up the Apples and pears to Bedfordshire.
There is no species called 'desert toad.' It is just a generic term referring to any toad living in a desert.
Foully blemished
The toad
A puddock can mean a small enclosure for animals (paddock) or a frog like amphibian.
it means you are as disgusting as a toad
it is a baby frog or toad
It's probably fibbin' amphibian, but that doesn't mean we have to like it.
Mizugama translates into Water Toad.
Yes, a toad can hurt another toad. When a toad decided to another toad, it might attack a larger toad. It might get it's mouth around a part of it and try to eat it. That brake body part of the other toad.
I think what you mean is 'Toad in the hole' an old time favourite English dish consisting of sausages baked in a Yorkshire Pudding.