Someone that points out the most slightest grammar or spelling mistake. The most innocent of people can briefly turn into something so low called a grammar nazi. They evolve when insecurity in heated arguments arise when a fault with one of the opponents spelling or grammar must be pointed out as an utter write-off excuse. A grammar comeback isn't a diss or even an ownage on any sort of level to begin with despite how well placed it could be. It's one of the worst cop out excuses of a finish/settlement driven by people that make it even more pathetic when "umadbro?'s" (angry people) use it over "the internetz" (the internet). Just from the fact that society accepts improper grammar this day and age for example a movie that might be called "I spie with my little i" makes grammar comebacks an automatic backfire period.
User 1- "How can the next xbox go a blu-ray drive if Sony is Microsofts compititor idiot?"
User 2- "*facepalm* so the xbox original must be reading off your moms cooch from hand-me-downs that used the same thing. How did that work? Your grammar is just as bad as how badly you missed the "e" in competitor.
User 1- Umadbro? I feel pretty owned um..but...since you turned into a grammar nazi at the end I don't feel so owned anymore as you pretty much voided EVERYTHING for being so low.