Grammar pedantry

Grammar pedants are the people who "tut" at you when you start a sentence with a preposition. Rumours circulate that their secret symbol is four Greek gammas arranged in an X-shape, for γραμματική (Greek for "grammar").

Prescriptivism
"Prescriptivism" is a term that some linguists and many linguistics enthusiasts associate with grammar pedantry.

Grammar pedants and "grammar"
Some have noted that the "grammar" these people correct has little to do with the linguistic definition of grammar.