Wikipedia
Anti-poetry is an art movement that attempts to break away from the normal conventions of traditional poetry. Early proponents of anti-poetry include Nicanor Parra and Elias Petropoulos.
Parra, known as the father of anti-poetry, published his first collection of antipoems in 1954 (Poemas y antipoemas) and sought to reject the belief that verse holds any mystical power. The poems have been described as prose-like, irreverent, and illuminating the problems of human existence.
Elias Petropoulos had tried to describe the art of Anti-poetry. This was in his “notebook” Indeed, in Berlin; containing verses that included intentionally made mistakes in regard to prosody, grammar and rhyme. The inspiration for many of Mr. Petropoulos poems had been the harsh, and sad atmosphere of the wall divided German metropolis where he was residing. Mr. Petropoulos had long come to the conclusion that poetry about love and desires was becoming too gentle for the literature of modern age. Rather it was time to introduce anti-poetry by incorporating anti-sentimentalism feelings and reaction within poems.