Strange and seemingly sexual noises a person of 'higher intelligiance' may make when witnessing something technologically explicit.
"Johnny had a nerdgasm over the Yamaha LS9-32"
by Special P May 4, 2009
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The sensation experienced upon completing an achievement that's only notable to a nerd or geek.
1. I just completed four rows with a single straight piece in Tetris! It gave me a nerdgasm!

2. My guild scored the world-first Anub'arak kill - I think the guild leader nerdgasmed.
by Daig October 27, 2009
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When something nerdy is pleasing almost to the point of sexuality, especially among nerds.
Your geeky friend Nick may say, "That APPLE festival tomorrow's going to be a nerdgasm, you going?"
by GettinSomeGranger January 26, 2010
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when someone has experienced too much nerdiness at one time, they are said to have a nerdgasm, where the said person blurts out random nerdy things.
person one: did you hear? kim possible is making a new movie! i'm going to have a premiere party!

person two: *nerdgasm takes over* ah i like protractors they help me with geometry i'm in honors rulers have numbers bacon's circumference is 89!!
by madeofnerd August 23, 2009
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An explosive, often verbal, sensation caused by a mind-blowing occurrence relating to nerdy material. A strong enough nerdgasm can lead to violent spasms similar to those of a seizure.
(After elongated, plot-advancing dialogue) "Bankai!" *nerdgasms*

"... then used Geass on myself to forget." *explosive nerdgasm!*
by Icy_Auron September 17, 2009
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An overexposure to an electronic item worthy of awe, or jumble of code-scripting and multimedia representing in a fucking awesome playable interface (aka a fucking awesome video game). One in this overexposure usually Splurges uncontrolably over anything within a 10-20 foot radius(occassionally blue???). A state of shock arrests the splurger's abuility to do anything from anywhere between 5 minutes to three months. If one tries to avoid a nerdgasm they are a n00b and should be pwned imediately by someone totally 1337.
"Oh ShIt i just nerdgasmed all over the place"...
*friend beside them wipes off face*
"oh shizite it smells like shit"
friend: "no you just shat yourself as-well"
by Harry Horton October 14, 2006
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When a science person experiences and/or expresses vocalisations (vaguely human) to a positive outcome of a major or minor (depending on propensity to having nerdgasms) scientific endeavour, the are said to be experiencing a nergasm. For example, the flyby of Pluto by New Horizons spacecraft spawned frequent, vocal and even multiple nerdgasms in the nerd community.
Did you see that picture of Pluto? Did you see that? Did you? OMG I just had a multiple nerdgasm. OMG, there's more? I'm having nergasms!
by QuantumSpinner September 7, 2016
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