Grammar: the whole system and structure of a language or of languages in general, usually taken as consisting of syntax and morphology (including inflections) and sometimes also phonology and semantics.
"Plz ban he lucky, he no legit!!! he haxd me akount, and got me fly! he to lucky to be legit!"
Hmmm seems like Arabic. Google Translate says that it translates to "I eat cats!" so I guess its good grammar. Now we just need a Mod who reads Arabic