Someone who corrects another persons grammar but then turns around and messes up themselves.
(Guy 1): Man this is so fun.
(Guy 2): So much fun you mean, you am welcome.
(Guy 1): Thanks Grammar Man.
by xStunnah September 13, 2016
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Grammar School man is the hardest zesser dem, but also there are a lot of 'wanna be ' zesssers.
by ZesserMan February 1, 2021
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