The act of shitting yourself while laughing at something. This happens because you were laughing so hard, your anus laughed with you.
Friend 1: 'My little sister told me the Justin Bieber movie was the best experience of her life and started to cry'
Friend 2: 'What did you say?'
Friend 1: 'I started laughing uncontrollably, but then I had a Sphincter Giggle and ran to the bathroom to clean up'
Friend 2: 'OMG I think I just had one too!'
Friend 2: 'What did you say?'
Friend 1: 'I started laughing uncontrollably, but then I had a Sphincter Giggle and ran to the bathroom to clean up'
Friend 2: 'OMG I think I just had one too!'
by thatguywhosaysstuffsometimes February 28, 2011

If the universe is infinite, anywhere could be the centre of the universe, so your asshole could be the centre of the universe.
by jacobrh3 December 5, 2021

A person that cannot let a social media post go without having to comment on the post with their opposing opinion which is almost always incorrect and ignorant. Compounding the douchey vibe of their behavior is that it usually involves hijacking the original post for the sole purpose of harming one's business and/or advancing their own personal interest while freeloading off of the post originator's audience. This type of poaching is almost always performed by someone that would have no qualms about crashing a party, pissing in the host's sink, freeloading the food and alcohol, driving drunk home and complain about the party the next day on social media. Could as easily be called an Asshole, Fucktard or Crap Weasel. Rates a 9/10 on the Douchebag meter.
I ran a great ad on facebook yesterday but had to take it down because some Sphincter Hound put in his 2 cents and doesn't know what the fuck he is talking about.
by goliwag February 23, 2024

by Funk & Wagnal August 18, 2009

When your massively dense turd splashes the toilet water and proceeds to wetten your ass, in the end making it easier to scrub your cheeks.
by SheistyAssCrack September 1, 2017

A girl with a large (long) nose. A nose large enough that it tickles your asshole while she performing deep oral sex in the 69 position.
by The more u know March 5, 2024

Definition 1:
Shitting through a glory hole onto an unsuspecting victim.
Definition 2:
Pooping through a hole in the wall in a bathroom.
Shitting through a glory hole onto an unsuspecting victim.
Definition 2:
Pooping through a hole in the wall in a bathroom.
"You hear Terry hit the boi Dary with the Ye ol' Wall Sphincter last night?
I heard an ol' battle cry as soon as he came out of the stall."
(7:14PM)
I heard an ol' battle cry as soon as he came out of the stall."
(7:14PM)
by CL4P February 27, 2021
