A state of grammar that is so bad, he or she must correct every sentence that is sent or written.
Can be used as:
Your on Matthew's level or
Your typing Matthew level
Guy: How art yoi

Girl: Wha?
Guy: How are yoy

Girl: Type English. Your typing on Matthew's level
Girl: like really get off of Matthew level
by M_MatthewD April 10, 2016
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