buttgasm 

The greatest shit of your life. Clenching you cheeks on the way to the toilet, praying you make it on time. When those sweet buns finally touch the seat an overwhelming feeling of pride and relief overcomes you and one cant help but squeel in satisfaction.

Mike: dude i heard some pretty wierd noises coming from the bathroom.

Chris: oh i was having a buttgasm

Mike: you know how i know you're gay?

buttgasm by mike the liar December 12, 2010

buttgasm 

it's like an orgasm, but in your ASS.

I crammed this bannana in my ass and proceeded to experience a buttgasm.

buttgasm by otto von jizmark September 3, 2004

Buttgasm 

After holding in rectal sepage for a long while, and finally being able to sit on the toilet and let it go. The rectal sepage comes out at an alarming rate and you seem to show symptoms of having an orgasm. Can be induced by continual diarrea.

Could be pull over? I feel a buttgasm coming on.

Buttgasm by Jamie H. May 10, 2007

Buttgasm 

When you let off such a large, relieving fart that just makes you feel so much better that you achieve a state of euphoria known as the Buttgasm.

An hour after I ate a bunch of burritos, I farted so much that I had a buttgasm!

Buttgasm by Vofman March 7, 2009

buttgasm 

The rush of relief experienced after dropping a persistent turd.

"The toilet at work was broken so I held my turd all day. When I got home and shit I had the biggest buttgasm of my life!"

buttgasm by Thatguy915 March 19, 2012

Toy Story Buttgasm

An orgasm through the butt achieved while watching Toy Story.

Woody: We've got to do something about this!
Audience member: Oh oh oh oh oh oh!!!!! Toy Story Buttgasm!

Toy Story Buttgasm by crashandburnofficial June 29, 2010

buttgasket 

Same as assgasket

The tissue paper thing shaped like a toilet seat that is in a public bathroom that you cover the toilet seat with to prevent your butt from touching it

Guy that needs to take shit: I need to take a shit.
Other guy: we’re almost home can’t you wait?
Guy that needs to take shit: NO!!!!
Other guy: ok we’ll stop here.
Guy that needs to take shit: this place is dirty I can’t poop here.
Other guy: well it’s here or you have to wait to we get home! Just out a few buttgaskets on the toilet seat and then sit down.

buttgasket by yourname2 December 15, 2008