Sphincterland 

A place to which you shouldn't attach vacuum cleaners, as demonstrated by a kind gentleman with odd solutions to normal problems.

First person: I tried to vacuum my farts away, and in so doing discovered something amazing in Sphincterland!
Second person: You've got issues

Sphincterland by Arraka February 7, 2018

sphincterian 

How to tactfully tell someone that they're an asshole, or they are doing a particular thing that's asshole-related

1) "That's such a sphincterian move" - What an asshole move

2) "I never realized, but you're actually quite sphincterian" - you're kinda an asshole

sphincterian by RMH000 December 28, 2019

sphincterlingus 

(verb) the act of licking your partners butt hole

Meghann really, really, really likes it and screams like a banshee when Dave performs sphincterlingus during naked sexy time time.

sphincterlingus by Meghann D March 14, 2011