Question

What does the word guarantee mean as it is used in the sentence?

"And ain’t nothing wrong with tights, but they’d surely guarantee a hole. Somewhere. In the wrong place. At the worst time."

Answer 1

In this sentence, guarantee means to provide a formal assurance or promise, especially that certain conditions shall be fulfilled relating to a product, service, or transaction.
In a less complicated definition, it means to assure something or a common phrase that means the same as guarantee is ‘without a doubt’

Answer 2

Guarantee in this entrance means without a doubt