Exactly the same as pomosexuality, but less pretentious sounding (i.e. No More Sexuality as apposed to Post Modern Sexuality).
"We've had Gay/Straight Alliances, but how about we just stop putting stupid superficial labels on people and be who we want to be? Say yes to nomosexuality and you say yes to no more bullshit labels from society."
My definition of a nerdsexual is someone who prefers to have relationships both of the mind and romantically/physically with other nerds regardless of gender or ethnicity. The mind and spirit is what is important.
I consider myself a total nerdsexual . I guess some people would callme a bisexual nerd but it is more than that. For instance I am a total nerd. I have always sought that out in my relationships both romantic and freindships. I don't judge anyone on their ethnicity (but do enjoy hearing and learning about opposing points of view a cultural things), I also don't judge anyone on their gender, what does it really matter if they have two X chromosomes or a Y thrown in. True love and connection has to do with the mind. Nerds have great minds.