You didn’t attach the poem, but I would assume that it is because the boot is used more frequently, and there’s a familiarity between the boot and a person that isn’t always present with the dress shoe– one is likely to be owned by many.
The phrase " As good as dead" means that there is no use of the person or thing.
Answer:
You're as noisy as a wasp!
Hope this helps! Of course there are many more, but this one is my favorite.
Explanation:
During a radio broadcast ppl will shout or make different noises to get the listeners attention and listen in on what they are talking about which leads to curiosity which is where the suspense comes from