The article discusses two interesting features of the Russian avant-garde. The first one is the use of the word baraban (drum), introduced in the collection Vzial: Baraban futuristov (1915) and since that time a part of the futurist lexicon, particularly that of Maiakovskii. Vasilii Kamenskii created the word farabanst, a combination of baraban and futurist. The second remarkable feature is the frequent occurrence of the number 7 in the texts of the futurists (Khlebnikov, Kamenskii, Kruchenykh, Maiakovskii). The number was often used to denote the futurist universe (there were seven representatives of Russian futurism).