Entry 2 senses Webster, 1913 jingoism /jĭng'-gōˌ-ĭz-əm/ · jin·go·ism · IPA /ˈd͡ʒɪŋɡəʊɪz(ə)m/ 01 n. The policy of the Jingoes, so called. See Jingo, 2. 1. The policy of the Jingoes, so called. See Jingo, 2.[Cant, Eng.] See: Jingo 2. A bellicose patriotism; aggressive chauvinism; belligerence in international relations.