OG

OG means 3 things: "original gangster", "exceptional", and the one that's the most used definition: "original".

OG is used in ways like telling someone they are an Original, that they are Exceptional, and if they are a gang member (such as the crips), they are an Original Gangster.

1) "Stupid ass Bloods, us Crips are the OG's!"
2) "Damn Billy, you are so OG!"
3) "My Great Grandpa Bartholomew II? Yeah, he's an OG."

Nerd

A Nerd is a person who is extremely enthusiastic and knowledgeable about a particular subject, especially one of specialist or niche interest and/or an unfashionable person who lacks social skills or is boringly studious. Also the name for the popular meme emoji The Nerd. 🤓🤓🤓

"Mr. Teacher, did you forget about the homework?"

"NERD!!"