By jingo, I'm leaving here in spite of the blizzard.
- an exclamation used to indicate strong assertion, surprise, etc.
Idioms and Phrasal Verbs
Origin of jingo
- From the phrase by jingo used in the refrain of a bellicose 19th-century English music-hall song from alteration of Jesus
From American Heritage Dictionary of the English Language, 5th Edition
- From the minced oath by jingo, which was used in a music hall song, written ca. 1878 by G. W. Hunt, that supported Britain's then belligerent attitude towards Russia. In this context, a euphemism for Jesus, influenced by the meaningless presto-jingo used by conjurors. A connection with the Basque jainko (“god”) has been suggested, but evidence is lacking.