Zappai (雑俳) is a form of Japanese poetry rooted in haikai. It is related to, but separate from, haiku and senryū. Lee Gurga defines zappai as a form of poetry that "includes all types of seventeen syllable poems that do not have the proper formal or technical characteristics of haiku."[1] The Haiku Society of America mentioned zappai while defining similar forms[2] though their comments were later rebutted by Richard Gilbert and Shinjuku Rollingstone.[3]