The crime of unlawfully killing a person by a nerd.
Nerder is usually commited in a video game, chess game, or similar nerdy enviroment.
to kill (a newb) unkindly and with premeditated malice.
see also: Nerderer
My girlfriend came up with it to describe what I was doing to her: trying to nerder her by making her watch cheezy sci-fi and horror movies from the 80's.