Poetaster /poʊɪtæstər/, like rhymester or versifier, is a derogatory term applied to bad or inferior poets. Specifically, poetaster has implications of unwarranted pretentions to artistic value. The word was coined in Latin by Erasmus in 1521. It was first used in English by Ben Jonson in his 1600 play Cynthia's Revels; immediately afterwards Jonson chose it as the title of his 1601 play Poetaster. In that play the "poetaster" character is a satire on John Marston, one of Jonson's rivals in the Poetomachia or War of the Theatres.