Youth sociolect has recently become the subject of increased attention of academic linguists, however, this phenomenon has a long history. Youth sociolect is one of the spheres of emergence and the most active channel of the spread of language innovations: lexical, phraseological. The new in the vocabulary captures the dynamics of the present, the real state of the language, which cannot be ignored or bypassed only on the basis that it is not the norm. It manifests itself not only in the replenishment of the vocabulary of the language, in the appearance of new words and new meanings, but also in the change of the semantic structure of the word and its volume. Characteristic features of youth communication are a relaxed, informal, humorous tone of communication, a high degree of emotionality. This is ensured by advanced use of appropriate vocabulary. Numerous studies indicate that it is the youth sociolect that is distinguished by the active use of colloquial vocabulary and slang. Therefore, the study of the specific features of its lexical enrichment, the determination of the productivity of various means of replenishing its vocabulary, and the identification of the relationship between different ways of word formation are of great importance for the characteristics of the youth sociolect. The study of the youth sociolect is still relevant today.