Top definition
A Premature Nerdgasm is when you have a nerdgasm about something defining comics, anime, or any other kind of fandom, speculating what you think might be happening, but only to find out you are dead wrong.

The Premature Nerdgasm MIGHT be followed by a true nerdgasm if it turns out it is actually better than your insane theory.
"I thought the Doctor was back on Gallifrey, giving me a nerdgasm, but it turns out he was actually in this place called the House or something, I don't know, I wasn't paying attention, so I guess I just suffered, like many Americans, a 'premature nerdgasm'." - Nerdy Man
by GentlemanChapNuts July 23, 2011
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