A feeling of euphoria one gets after seeing something truly awesome. Normally lasts anywhere between 3 weeks to 4 months.
Me: So, I just saw Harry Potter and the Deathly Hallows part 1.
Girl: How was it?
Me: I'm gonna be on a nerd high for a long time.
Girl: How was it?
Me: I'm gonna be on a nerd high for a long time.
by Potterfreak82 January 23, 2011
The euphoria you feel when (after a frightening number of wrong guesses) you guess the right password just before you're locked out of a seldom used program.
After four tries, she finally guessed the right password to log into Etsy. Shiela couldn't believe her luck, or the Nerd High she was feeling.
by Poetic Diva April 29, 2011