HyperboleA mountain of homework
A very large amount of homework.
Kabir has a mountain of homework this weekend.
Remember: Homework can't be as tall as a mountain. Calling it one exaggerates (hyperbole) and paints a picture (metaphor) at the same time.
Short lessonSaying more or lessSometimes we stretch the truth, shrink it, or give things human feelings to make a point.