The article analyses some features of the poetic language use in the work of two representatives of Leningrad uncensored poetry (Leonid Aronzon and Viktor Krivulin). In their texts, most often written in compliance with all the norms of traditional syllabotonics, they actively practiced form- and word-making, creating new words and various sentences without semantic layer. They introduced foreign-language borrowings, ready quotations from other literary works and obscene vocabulary. In some cases, they could also conduct experiments with non-standard graphic presentation of the text, trying to achieve its perfect symmetry.Studying the idiosyncrasy of the poetic idiolect (the identification of language means regularly repeated in texts, new verbal constructions, whole words or forms of words, syntactic constructions) of the “uncensored” Leningrad authors helps the reader to better understand how their artistic world was created.