The banzai yell is a Japanese yell of congratulations. It is used to wish somebody well, and it is usually shouted three times.
This yell is generally associated with the military, but is also used in Japanese local weddings. Before a toast is made, each person leading the toast must chant a few words ending in “Banzai.” Repeating this phrase three times is considered a proper toast.
The banzai yell is mainly used to congratulate somebody, but it is also used to wish for a long life. In Japan, this is believed to mean ten thousand years of life.
During World War II, the Japanese military often yelled the banzai yell during battles. They yelled it in celebration and as a patriotic gesture. Sometimes, they even used it as an interjection, meaning it was used to say “unused English words” in a certain way.
Many Japanese soldiers would yell the banzai yell when they were dying. They yelled it as a patriotic gesture to the Emperor.
After the war, the use of the banzai yell became unusual for top government officials. Most people were confused as to whether the yell was a salute or a warning. Some people felt it was a misunderstanding of the emperor’s wishes. Others said it was a courtesy to the emperor, but they didn’t think it was appropriate.
Since World War II, the banzai yell has been used to express a number of things. People may yell it during a happy occasion, or they may yell it in honor of the emperor.