girls who kick ass at being nerds and geeks, and dominate the boys too. play video games and computer games, know the gaming lingo, love star wars and star trek insanely! etc, you get the picture.
matt: hey dave did you see alex at the gaming convention?
dave: naw bro who is he?
matt: SHE is such a girleek! you have to play halo with her, she'll kick your ass!
dave: what are we waiting for!? ive never met a girleek before