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1.
Carpe Grammer is a prase popularized by English teachers, who will often give a pep talk at the start of the year in an effort to rouse the class, 90% who could care less, into being excited about grammer.

Often used at the end of said speach.
Teacher-"....Therefore class, I want each and every one of you to make an effort to better your grammer, and language skills every day, Carpe Grammer!"
Class-*blank, zombie like, stares*
by Uriah heep January 09, 2009