Hyperbole is exaggerated statement or claim not meant to be taken literally. (https://languages.oup.com/google-dictionary-en/) The hyper- in hyperbole means "beyond," so it's a good sign that the word has to do with going above and beyond what's necessary. (https://www.vocabulary.com/dictionary/hyperbole)

Examples: 

"I'm so hungry, I could eat a horse." (Exaggeration of hunger)

"I've told you a million times!" (Exaggerating the number of times something was said)

Both are commonly used in literature and everyday language to convey more expressive meanings.

Sources:
https://languages.oup.com/google-dictionary-en/

https://eslgrammar.org/hyperbole/

                        Author of the page:  Bc. Kateřina Horáková