A haiku is a non-rhymed verse genre. In Japanese, haiku has five syllables/sounds in the first line, seven in the second, and five again in the last line . In Japanese, the word "haiku" means "playful verse." More important than form is that a haiku contain a "kigo" (season word) and employ the equivalent to a "kireji" (cutting word), which means that the poem should present two juxtaposed parts in three lines. In addition, haiku should use objective sensory images, and avoid subjective commentary.
Little fuzzy ducks
Ran over by giant trucks
Duck soup for dinner.