2.) Someone who is so uncool that they are somehow cool.
3.) Being able to be oneself and deviating from the norm without justification or apology, but being able to pull it off.
2.) It's not that Elijah is a total nerd. He just really knows how to rock that nerd swag.
3.) Joslyn had to call Elijah to tell him about this great new show she watched called Charles in Charge, and when she called him he was watching Teenage Mutant Ninja Turtles III on VHS. They have nerd swag.
An easier way to think of it, is simply looking at the word. Nerd + swag = nerdswag. All the intellectual strengths of being nerd, and all the social benefits of having swag.
"I'm seriously considering taking 17 credits next semester. #nerdswag"