sing for one's supper

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sing for one's supper (third-person singular simple present sings for one's supper, present participle singing for one's supper, simple past sang for one's supper, past participle sung for one's supper)

1. (intransitive, idiomatic) To work in exchange for some reward or recompense.

• for a song

• “sing for your supper”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “sing for your supper”, in Collins English Dictionary.