grammateur
an individual that uses poor grammar, either inadvertently or deliberately.
Bob never uses "their" and "there" properly in his emails. He's such a grammateur.
grammateur
A new grandmother who has no idea what she's doing with regard to grandmothering. (hat tip to JCW for the definition)
Bessie was obviously a grammateur, as she used safety pins to fasten her granddaughter's diaper together even though it had adhesive straps.
grammateur nazi
One who provides unwarranted - and incorrect - grammar corrections.
Internet User #1: There so awesome!
Internet User #2: Their*
Internet User #3: The Grammateur Nazis have arrived!
Internet User #2: Their*
Internet User #3: The Grammateur Nazis have arrived!
grammateur
Grammateur - an amateur of correct grammar. For example someone who is unable to realise the difference between "your/you're" or "there/their/they're".
David: "Did you see Sophie's Facebook post? What a grammateur!"
Joseph: "Yeah, I think she may be illiterate."
Joseph: "Yeah, I think she may be illiterate."