jin ‧ go ‧ is ‧ m /ˈdʒɪŋɡəʊɪz ə m $ -ɡoʊ-/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Origin: jingo (17-21 centuries) (probably from Jesus ), used in the phrase by jingo as an exclamation in a 19th-century British song encouraging people to fight for their country ]
a strong belief that your own country is better than others – used to show disapproval ⇨ nationalism :
a mood of warlike jingoism
—jingoistic /ˌdʒɪŋɡəʊˈɪstɪk◂ $ -ɡoʊ-/ adjective