Definition: propaganda; especially: political propaganda promulgated chiefly in literature, drama, music, or art
Agitprop is a curious sort of portmanteau, blending parts of two words, each from a different language. It comes from the Russian word agitatsiya (“agitation”) and the English propaganda (“the spreading of ideas, information, or rumor for the purpose of helping or injuring an institution, a cause, or a person”). An agitprop agent is called an agitpropist.
Chris Hedges, a former reporter for The New York Times who now blogs at TruthDig.com, accused him of making a work of “agitprop for the security and surveillance state,” intended to marginalize WikiLeaks and Mr. Assange.
—David Carr, The New York Times, 6 Oct. 2013