Definition of social chauvinism in English:

social chauvinism

noun

derogatory
  • (Chiefly in the phraseology of communism and socialism) the action or practice of supporting one's own non-socialist government during wartime, rather than pursuing the overthrow of capitalism through a proletarian revolution.

Origin

Early 20th century; earliest use found in The Times. After Russian social-šovinizm.