Fourth of July

Short definition from Wiktionary

Proper noun

1. 1
   The national holiday of Independence Day in the United States, celebrated on the fourth day in July to mark the anniversary of the signing of the Declaration of Independence from Great Britain in 1776.
2. 2
   Used other than figuratively or idiomatically: see Fourth, of, July.

Noun

1. 1
   A cocktail containing one part grenadine syrup, one part vodka, and one part blue curaçao, reminiscent of the red, white, and blue colors of the United States flag, often poured in layers so that the colors do not mix when the drink is served.