Definition of do time
: to be in a prison for a period of time : to serve all or part of a prison sentence
He has been doing time in a federal penitentiary.
—sometimes used figuratively as do one's time I've done my time at that terrible job, and now it's time to move on.
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“Do time.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/do%20time. Accessed 15 Jun. 2021.
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