A limerick is a form of poetry that is always light and humorous. It consists of five lines and follows a strict rhyming pattern, with the first, second, and fifth lines rhyming with each other, and the third and fourth lines rhyming with each other. Limericks are often nonsensical, and they frequently use wordplay and puns to create humor. They do not have a serious subject matter, and they do not use lofty language.