geek chaser
a person who is attracted, primarily or exclusively, to geeks, both as friends and significant others; a person who is sexually attracted to geeks
Don't even try it, bro -- Chloe's a total geek chaser. Everybody she's ever dated has been into video games and webcomics and science and stuff." "What if I start wearing glasses?" "She'll see right through it. Her kind can sense it if you're fake. Just let her go, my friend. Let her go.