It means the exact same thing as “Grammatical” but it’s better.
What are the Grammerical rules of English?

Why is his penis so long?
by The Great Bob December 11, 2020
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A person who posts memes on Instagram with a caption cryptically relating the meme to another person.
Elle is such a cryptic grammer, I think her Instagram post is referring to me as that dude who's a 10 but always uses Snapchat instead of text. Although it could be any one of her hot lovers.
by Daddyisa10 July 21, 2022
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A word to say that you spoke the wrong grammar but a new type.
That is bad Grammeration!
by Dogeconner January 24, 2023
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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 9, 2009
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