noun
a slang term used in Australian and British English meaning to inform on someone or report someone's wrongdoing to authorities
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He had to provide his date of birth (dob) for the official records.
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Can you tell me your dob so I can add it to the form?
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I don't remember my dob, can I just make something up?
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The company's success rate seems to be directly correlated with the CEO's dob.