What is hyperbole?
A hyperbole involves blatant exaggeration of an idea to better get the point across.
A hyperbole is a figure of speech that involves an over-exaggeration of ideas for the sake of emphasis. Due to the exaggeration, a hyperbole isn't meant to be taken literally and therefore uses figurative language.
Here are some examples:
"My backpack weighs a ton!"
The backpack probably doesn't weigh a ton (otherwise, the wearer would be dead); however, claiming that it does conveys that the backpack is very heavy.
"When I froze up on stage, I nearly died of shame!"
The exaggeration of shame nearly causing death shows how strong the shameful feeling was.