The State of relief and euphoia just after unleshing a giant crap(or perfoming "Shock and Awe") from your body... usually accompanied by a long sigh of relaxation as your sphincter retacts to its normal state. Much like the state of relaxation after an orgasm... kinda...
"I shitgasmed twice already this morning... its gonna be a good day!"
by JadeHawk June 8, 2004
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That really good feeling you get after taking a big shit
Guy: I took a huge shit like 5 minutes ago and now i'm having a really great shitgasm.
by me123abc January 15, 2009
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When an individual releases the excrete that has been building inside of his or herself for hours. This is proceeded by a euphoric relief.
"Gregg, ever taken a shit that just felt so right"
"Oh, you mean a shitgasm, totally!"
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N. The Best part of feciation. A moment of infinite awesomeness.
Boy: ohh, yeah! Yes!
Mom: honey, whats going on?
Boy: nothing, mom. Just having a shitgasm on the toilet.
by StarRockerGuy January 15, 2010
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The incredible feeling of taking a long anticipated shit.
I had to shit for hours and couldn't find a toilet; but once I did I had the best shitgasm of my life.
by sbsmike January 22, 2013
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When a girl shits during an orgasm
Shitgasm.....Just imagine 'Psycho' but with shit
by H-Bo November 18, 2010
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One version of it is

The State of relief and euphoia just after unleshing a giant crap(or perfoming "Shock and Awe") from your body... usually accompanied by a long sigh of relaxation as your sphincter retacts to its normal state. Much like the state of relaxation after an orgasm... kinda...

or version 2
when someone gets fucked in the ass sooooooooo good they have an orgasm with little to know genetile stimulation
Girl: Fuck me harder aww yess fuck my asshole deep
guy:you like that cunt you like my dick in your ass
girl: awe yes oh shit im haveing a shitgasm aww fuck im cumming
guy:oh shit me 2
girl:Cum in my ass
guy:*moans* ahhhhh

*girl gets up*

girl: AWW MAN I GOTTA SHIT
guy:wonderful :(
by BRADIZZLE123 September 21, 2007
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