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1.
A term used to desribe an individual who make comments on spelling and grammar mistakes.
John said: "I did good today"
Peter responds: "WELL peter, you did WELL"
John: "everyone get out of the way! it's the grammar gestapo!"
by Brendan Gilmartin February 21, 2007
 
2.
Often known as the GG
When you make a spelling/grammar mistake, lock your doors, because the Grammar Gestapo are going to break yer legs!!!
by Buzvonlurt February 22, 2005