do bird

• do one's bird

Originally Cockney rhyming slang, shortened from bird-lime for "time".

do bird (third-person singular simple present does bird, present participle doing bird, simple past did bird, past participle done bird)

1. (UK, dated, informal) to do time (to serve a prison sentence).

• “do bird” (UK) in Macmillan English Dictionary.
• “do bird” in Longman Dictionary of Contemporary English, Longman.
• “do bird”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “do bird”, in Collins English Dictionary.