Variant of jingo
a person who boasts of his or her patriotism and favors an aggressive, threatening, warlike foreign policy; chauvinist
Origin of jingo; from phrase by jingo in the refrain of a patriotic British music-hall song (1878): origin, originally uncertain or unknown; perhaps euphemism for Jesus
of jingoes; jingoistic
Informal an exclamation used to indicate strong assertion, surprise, etc.