sphincter sprinkler 

When instead of wiping your ass after shitting, you push your penis through your legs and piss on your asshole, successfully cleaning yourself from left-over feces residue in your ass-crack

yo bro grab me some TP

pull a sphincter sprinkler

word.

sphincter sprinkler by Ron Howard13 March 22, 2011

sphincter of fire 

The burning sensation you get in your anus the day after eating way too much spicy food.

I jammed an ice cube up my ass trying to extinguish my sphincter of fire.

sphincter of fire by Casewhacka July 16, 2004

sphincter grease 

sphincter grease /ˈsfɪŋktər - grees (n.):

1. The resulting oily residue as having been rendered from an abnormally abundant and unkempt conglomeration of "swass" (aka. ass sweat).

-This advanced state of natural anal lubricant can typically be found on most hippies, destination vacation attendees, and hobos, and is commonly noted as the 2nd natural state of anal condensation, the first being "swass" and the 3rd being "ass butter." Sublimation is possible in extreme cases, however highly unlikely as sphincter grease plays an integral role in springboarding swass into a semi petrolic, pre-gelatinous state necessary for the achievement of ass butter.

I wouldn't be sliding all over this god damned linoleum car seat if it weren't for all this fucking sphincter grease

sphincter grease by Def Batface April 9, 2009

Sphincter Slut

Someone who likes getting pounded in the butt.

She was on her period, so she just asked me to do her in the butt; that fucking sphincter slut.

Sphincter Slut by Sven, Miles, Scott, Paul July 10, 2006

sphincter tight

A tight ass.
a) resulting from being in a tense or pressured situation
b) being uptight or generally harsh

Mike is totally sphincter tight about his job review.

Dude, my dad is being completely sphincter tight about letting me use the good car Saturday night.

sphincter tight by todh November 28, 2007

sphincter fatigue 

When ones sphinster muscle has been clenched for an extended period of time causing the sphincter muscle to contract and relax rapidly thus resulting in loss of clenching ability where by feces is released through the anus.

While Greg was boating in the middle of Lake Arthur he had to poop, he clenched for so long that he finally succumbed to sphincter fatigue and shit his shorts!

sphincter fatigue by butch8069 August 31, 2011

sphincter boy 

adj: a polite way of saying asshole

well hi there sphincter boy

sphincter boy by Owen June 30, 2003