<span>The Ghost was definitely not reliable. </span>
Answer:
I believe that this expression would be classified as hyperbole.
Explanation:
It is a hyperbole because it's a stretch from the truth, they (being "we") didn't actually walk a hundred miles.
The sentence that includes an allusion is: Like a Grinch, he hated the holidays.
Because it refers to Grinch, a character from a well-known film, who hated Christmas.