cowabunga.
Expressing amazement, enthusiasm, or joy.
Meaning & usage
Expressing amazement, enthusiasm, or joy.
Cowabunga, dude!
Where this word comes from
Unknown, but was popularized (as Kowa-Bunga) by Chief Thunderthud on the American children's show Howdy Doody in the late 1940s or early 1950s, and became associated with American surfing culture. By the early 1980s, it was used as the catch-phrase of Cookie Monster on the American television show Sesame Street, and gained popularity with a broader audience after its use in the American cartoon Teenage Mutant Ninja Turtles in the late 1980s and early 1990s. (For further treatment, see here.)
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.