any sort of minor event which causes a nerd to flip out, freak out, or generally over-react. the rest of the non-nerd population usually remains quite calm and unaffected by a nerdtastrophe
by raqi syed June 12, 2007
Dan- Why is that nerd flipping out?
Ben- It's a nerdtastrophe. He got an A instead of an A+ on his quiz.
by rewards19999 May 09, 2010