Bombast: Inflated language; the use of high-sounding language for a trivial subject.

Example:
"Let gallows gape for dog; let man go free, and let not hemp his windpipe suffocate."
-Shakespeare

Explanation:
Shakespeare uses bombast language through out all of his works. In this case, his purpose is to make a mean sentence less mean. the quote means "Only hang dogs, not men." The use of bombast language adds to the purpose of making it more professional and grandiloquent. Also this type of language is what Shakespeare is known for. Lastly, the way Shakespeare wrote the sentence with the bombast language makes the sentence less harsh than it really is in reality.