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Bringing up someones past mistakes from years ago when they have made an effort to change their ways.
Gary: I heard Pete became a qualified teacher.

Phill: Seriously!? Didn't he used to steal from shops when he was younger and got arrested a few times?

Pete: Oi knock it off with your past shaming! Those happened years ago and now I have changed my ways!
by Ron-Magnifico January 24, 2018
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