Hip hip hooray

In Australia, South Africa, and to a lesser extent the United Kingdom, the cheer is usually expressed after the singing of "Happy Birthday to You".

[9] "Hip-hip" was added as a preparatory call before making a toast or cheer in the early 19th century, probably after 1806.

Cornell's Michael Fontaine disputes this etymology, tracing it to a single letter in an English newspaper published August 28, 1819, some weeks after the riots.

"[13] Ritchie Robertson also disputes the "folk etymology" of the acronym interpretation,[14] citing Jacob Katz.

[15] One theory about the origin of "hurrah" is that the Europeans picked up the Mongol exclamation "hooray" as an enthusiastic cry of bravado and mutual encouragement.