born on the Fourth of July
Refers to the Fourth of July, which is Independence Day in the United States. The specific phrase likely originates with the song “Yankee Doodle Dandy” which opens with I'm a Yankee Doodle Dandy / A Yankee Doodle, do or die / A real live nephew of my Uncle Sam's / Born on the Fourth of July.
- (idiomatic, US) Demonstratively patriotic about the United States.
- He was never in the service, but he acts like he was born on the Fourth of July.
1977, Tom Paxton (lyrics and music), “Born on the Fourth of July”, in New Songs from the Briarpatch:
- I was born on the Fourth of July / No one more loyal than I.