What is "sashka"

Sashka is a poem by Mikhail Lermontov, written in 1835–1836 and first published by Pavel Viskovatov in No. 1, 1882, issue of Russkaya Mysl magazine. Belonging to the so called "Ironic cycle" (alongside "The Fairytale for Children" and "Tambov Treasurer's Wife"), it is one of Lermontov's largest poems, containing 149 stanzas (11 lines each, written partly in dactylic pentameter, partly in modified Ottava rima format). The poem, with its sharp criticism of the contemporary Russian society, marked a radical detour from Lermontov's earlier romantic verses. Critics see it as a pivotal point in Lermontov's development as a realist and as a huge step from earlier, mostly derivative works towards his masterpiece A Hero of Our Time.