Hyperbole is exaggeration used to emphasize a point or create humorous effect. It overstates qualities, emotions, or other aspects to put an exaggerated picture in the reader's mind. Examples include describing someone as having skin "as thin and drawn as the skin of onion" or saying "you could have knocked me over with a feather." Hyperbole is commonly used in poetry and descriptions to poke fun or make dull things seem more interesting.