"SENRYU: The senryu is a satirical form of the haiku. The form originates in Edo with the poet Karai Senryu (1718-1790). While the haiku attempt to avoid excessive "cleverness," vulgarity, humor, or explicit moralizing on the poet's part, the senryu embraces these elements. The genre allows a greater liberty of diction. Its tone is less lofty than the Zen-like tone found in many haiku, and it often focuses on the distortions and failings of human nature rather than the beauty of nature. Conventional topics include mothers-in-law, shrewish wives, women of disrepute, the antics of bachelors, and misbehavior among the clergy." -- Literary Terms & Definitions.