Limericks are short, humorous five-line poems. They originated in England in the early 1800s, and was popularized by Edward Lear in the 19th century. Limericks follow strict rhyme-schemes (AABBA), and are often made to make you laugh.
There Was a Young Lady of Dorkling by Edward Lear
There was a Young Lady of Dorkling
Who bought a large bonnet for walking;
But it's color and size,
So bedazzled her eyes,
That she very soon went back to Dorkling.