Sitgasm 

When you sit then let out an involuntary moan.

When my mom sat she had a sitgasm.

Sitgasm by Mory Ballstine January 21, 2009

Shitgasm 

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!"

Shitgasm by JadeHawk June 8, 2004

Shitgasm 

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.

Shitgasm by me123abc January 14, 2009

Shitgasm 

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!"

Shitgasm by Michael Mitchell and Gregg Monastyrski February 6, 2008

Shitgasm 

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.

Shitgasm by StarRockerGuy January 14, 2010

Shitgasm 

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.

Shitgasm by sbsmike January 21, 2013

singasm 

When someone is singing and they sound so good that they literally give you an orgasm

Katy Perry gives me a singasm

singasm by THEreto May 4, 2016