Definition of Blue Blouse in US English:

Blue Blouse

noun

historical
  • A Moscow theatre company formed in 1923 that staged topical material for the purposes of political propaganda; (hence) a Soviet theatre movement influenced by the performance style of this company.

Origin

1970s; earliest use found in Drama Review. After Russian Sinjaja bluza, so called with reference to the blue workers’ uniforms in which the actors performed.