Chastushki

Chastúshka, Russian: часту́шка, pronounced [tɕɐsˈtuʂkə], derives from "часто" - "frequently", or from "части́ть" is a traditional type of short Russian or Ukrainian humorous folk song with high beat frequency, that consists of one four-lined couplet, full of humor, satire or irony. Usually many chastushki are sung one after another. Chastushki make use of a simple rhyming scheme to convey humorous or ironic content. The singing and recitation of such rhymes were an important part of peasant popular culture both before and after the Bolshevik Revolution of 1917.

A chastushka (plural: chastushki) is a simple rhyming poem which would be characterized derisively in English as doggerel. The name originates from the Russian word "часто" ("chasto") - "frequently", or from части́ть ("chastit"), meaning "to do something with high frequency" and probably refers to high beat frequency of chastushkas.

The basic form is a simple four-line verse making use of an ABAB, ABCB, or AABB rhyme scheme.

Usually humorous, satirical, or ironic in nature, chastushki are often put to music as well, usually with balalaika or accordion accompaniment. The rigid, short structure (and, to a lesser degree, the type of humor used) parallels the poetic genre of limericks in British culture.

Sometimes several chastushki are delivered in sequence to form a song. After each chastuska, there is a full musical refrain without lyrics to give the listeners a chance to laugh without missing the next one. Originally chastushki were a form of folk entertainment, not intended to be performed on stage. Often they are sung in turns by a group of people. Sometimes they are used as a medium for a back-and-forth mocking contest. Improvisation is highly valued during chastuska singing.

...
Wikipedia