Definition of dirty realism in US English:

dirty realism

noun

Literary Criticism
  • A literary style which attempts a gritty and unidealized depiction of contemporary life; (in later use) specifically a genre of (chiefly U.S.) fiction concerned with the experiences of the disaffected or disadvantaged, characterized by downbeat stories especially of small-town life, written in stark, direct (though often highly stylized) language, sometimes intended to shock.

Origin

1930s. From dirty + realism.

Pronunciation

dirty realism

/ˌdəːti ˈrɪəlɪz(ə)m/