Final answer:
The phrase "boy, it's as hot as a firecracker out here! i'll just have to bite the bullet and deal with it" is an example of slang.
Step-by-step explanation:
In the sentence provided, the italicized phrase "boy, it's as hot as a firecracker out here! i'll just have to bite the bullet and deal with it" is an example of slang. Slang is a type of informal language typically used in casual or colloquial speech. In this case, the phrase uses idiomatic expressions and informal language to convey the speaker's feelings about the hot weather and their determination to endure it.
The italicized phrase in the sentence 'Boy, it's as hot as a firecracker out here! I'll just have to bite the bullet and deal with it.' can be categorized as slang and trite. The term 'hot as a firecracker' is considered trite because it is a cliché that has been overused to the point of losing its originality and vividness. Similarly, 'bite the bullet' is another trite expression that refers to facing a difficult situation with courage, which has become a commonly used idiom. Neither phrases are vague or stilted; they are familiar to most speakers of English and fit the casual tone of the sentence.