It is an example of a hyperbole.
entomology i may be wrong but this is the answer that i got
Oh my gosh this brings back memories to 8th grade lol I remember reading this!
Answer:
This quote is saying, when i spoke my wish, the monkey's paw started to move in a creepy, mysterious way. It's unique way of twisting can be compared to how a snake slithers
4 they name ways that skin is important to the body’s health