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the past; something that happened in the past that you would like to be forgotten.
Why can't you let bygones be bygones?
by DaDiva January 05, 2005
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An expression meant to pre-emptively defer an argument based on an opposing viewpoint. It signals to the other person that you already understand their position and accept that you disagree with each other. It is a reference to the phrase "let bygones be bygones," and was popularized by the TV show "Ally McBeal."
Sorry, I think socialized medicine is a good idea. Bygones!
by Esprix July 16, 2009
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Someone that plays both sides of an argument but refuses to pick either.

A friend that keeps secrets from you when they see your boyfriend or girlfriend being doing you wrong because "its not their place."
I thought you were my friend until you failed to tell me jessica was sucking d in the ruby tuesday parking lot, now i can see your just a bygone.
by Batsquirrel May 15, 2019
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