propaganda of the deed [ˌpɹɒ.pəˈɡæ̝ˑn.də əʋ ˌðə ˈdiːd] noun2 •(historical) A politically motivated act of violence, meant to broadcast an ideological message and serve as catalyst to ignite a spirit of socialist revolution among the proletariat against perceived oppressors. •(historical) The theoretical principle of using acts of violence in the struggle to achieve radical left-wing political goals.