A more thorough explanation:

Legalese is a type of language used by people in the legal field and in legal documents. It is often difficult for the general public to understand because it uses complicated sentence structures, old-fashioned words, and Latin phrases.

For example, a sentence in legalese might look like this: "The party of the first part hereby agrees to indemnify and hold harmless the party of the second part."

This sentence could be simplified to: "The first party agrees to protect and not blame the second party."

Some people in the legal field believe that using legalese makes their job seem more important and impresses clients. However, others argue that using plain and simple language is better because it allows everyone to understand legal documents without having to hire a lawyer.