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when you are having a conversation and this of the most perfect word to describe what you're talking about, and suddenly the word escapes your mind, and you spend a good 10+ minutes trying to remember the word. then out of nowhere the word comes back to you, your hands grip whatever is in arm-length and you let out a gasp.
"yeah my parents got married a lot later, but theyre quite.....crap i just had the perfect word"
"what was it"
"it had to do with uncommon, or against society"
(10+ minutes later)
(falls back onto bed, grabs the persons wrists)"oh my gosh i got it, unconventional" (gasp, smile, laugh, relief)
"geeze that was like an orgasm"
"oh no that was a brain-orgasm"
by holymoleydood August 07, 2009
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2
That feeling you get when you create something that you're really proud/excited about.
"Dude I'm having a total brain orgasm over this story I wrote!"

"This painting is giving me a huge brain orgasm."
by Coolness MacButt April 14, 2010
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3
A trick often displayed via an image to get the reader to first hyperventilate themselves and then blow on their thumb, causing oxygen deprivation. The result? A euphoric feeling, however it is not without its consequences, it will of course damage you and, with that euphoric feeling, is an extreme pain, both feelings do not last long.
"Hey dude check this trick out!"
"What?"
"1) Bring knees to chest

2) Breath deeply in and out for 20 seconds

3) Blow on thumb as hard as possible"
"Lets try it!"
"OH GOD! BRAIN ORGASM!"
by Lemen October 21, 2009
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The vengeful act of crapping on a lover's chest while they sleep.

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4
synonymous with epiphany; a quite large realization; finally figuring something out, particularly after everyone else in a group.
Jim: Jenny just had a brain orgasm!
Tom: What the hell?!
Jim: She finally got the joke i told 10 minutes ago!
Tom: Dumb blondes....
by killshot ;) April 25, 2010
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5
The excitement that one experiences from sex texting. It does not involve the genitals, only the brain since one experiencing it is imagining doing the act.
Dude, yesterday I called the number from the adult late night adverts. I had a chat with Cindy and she gave me a brainorgasm.
by Thee Real Beast April 06, 2011
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