know someone when

idiom

: to know someone before he or she was famous or successful
I can say I knew you when.

Dictionary Entries Near know someone when

know (someone) of old

know someone when

know something backward and forward

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“Know someone when.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/know%20someone%20when. Accessed 25 Apr. 2024.

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