interjection
used to express farewell or goodbye in a cheerful or light-hearted manner
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As the meeting came to a close, the chairman bid farewell with a polite 'toodaloo'.
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I'll see you later, toodaloo!
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Toodaloo, dude! Catch you on the flip side.
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She waved to her past mistakes, saying 'toodaloo' as she moved forward with a clean slate.