One who is, instead of being made of organs and tissues and whatnot, made of awesome.
The word originated in John and Hank Green's video log projected, called vlogbrothers. While John was in an airport one day (curse those grey speckled walls), he saw a video game called Nerd Fighters.
Thus, the legacy of nerdfighting began.
Nerdfighters, we bring the frakkin' pain.
Nerdfighters are considered to be "made of awesome" by John, Hank (the other participant in the videoblog), and other nerdfighters. The nerdfighters often send in pictures of nerdfighter related activities to the videoblog, such as nerdfighter embroidered pillows. It is unknown what will happen to nerdfighting when the videoblog ends.
"Bob is pretty nerdfighter."
As a noun:
"Bob is a nerdfighter."
As a verb:
"Yeah, I totally nerdfought my way through that."
As a group:
"The nerdfighters killed Bob's family."
"Are you a Nerdfighter? Yes? Then DFTBA!"
Dude 2: NERDFIGHTERS FTW!