HYPERBOLE ---> is an exaggeration which may be used for emphasis and humor. And hyperboles are normally used in speaking and writing as well for effect or to make a boring story more interesting, or enjoyable to hear or read.
Examples of Hyperbole:
1. I'm so hungry I could eat an entire pig.
2. I got million things to do.
3. He is as thin as a toothpick.
4. His smiles are sweet as chocolates.