Dork in my pants
To be excited nearly to the point of sexual release over something dorky, geekish, or nerdy.
"Oh man, I went into Best Buy and found the complete series of Firefly on Blu-ray! I almost dorked in my pants right there."
"Did you go to the midnight opening at Gamestop for Black Ops?
Hell yeah! I thought I was gonna dork in my pants waiting on line!"
"Did you go to the midnight opening at Gamestop for Black Ops?
Hell yeah! I thought I was gonna dork in my pants waiting on line!"