1. Noun

   haikai (collective name for haiku, haibun, haiga, senryū, etc.)

2. haikai no renga (humorous, often vulgar style of renga which emerged in the 16th century)

   AbbreviationHistorical termsee 俳諧の連歌

3. absurd; comical

   Poetical term

Also written 誹諧【はいかい】haikai