An exclamation expressing excitement, joy, triumph, or celebration used especially in informal speech.
A modern onomatopoeia created in the 20th century to represent the sound of yelling in excitement, possibly influenced by earlier exclamations like 'wahoo' and 'yippee.' It's primarily an American informal expression.
Woohoo is a completely modern word—it probably didn't exist before the 1960s-70s—yet it perfectly captures human celebration and is now understood worldwide, showing how quickly new exclamations can spread through pop culture.
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