An Empty Grammar Flex, or EGF, is when a user on a forum or comment thread attempts to gain leverage on other users by correcting the spelling and/or grammar of the other users in place of or in addition to focusing on content.
Man this guy just pulled an empty grammar flex on me on gearslutz, check it out...
"Please, please kill the RCA cable. They're not really even called RCA cables. I don't even know what they're real names are. RCA's just a company, they' didn' invent this stupid unbalanced cable "
1- Please check your history before complaining; RCA did invent the connector used in "phono" cables. it was in the early 1940s.
2- please check your grammar; there is a difference between "they're" and "their".