To be asked to show official identification, such as a driver's license, to verify that one is above the legal age of majority, usually when trying to purchase alcohol or enter an age-restricted place. I can't believe I got proofed when we were out to dinner—it must be because I shaved my beard. We were all waiting to show our fake IDs to the bouncer, but none of us got proofed as we went into the club.
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