Radar Sphincter

The almost magic-like phenomenon when someone who needs to take a really bad poop gets within 20 feet of a toilet and immediately they have an almost uncontrollable urge to crap.

Dude I was flexing like Mr. Universe on that road trip and when I got into McDonalds my radar sphincter went off and my turds were coming out like people in a burning building.

by T Macalicious November 27, 2010

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.

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.

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!

by butch8069 August 31, 2011

sphincter boy

adj: a polite way of saying asshole

well hi there sphincter boy

by Owen June 30, 2003

sphincter necklace

having one's head up their ass

That moron has his head so far up his ass he's wearing a sphincter necklace!

by ajjrcj August 30, 2010

Shintercourse

Similar to sexual intercourse, but only involves the shins of both parties involved. Any contact with any body part other than the shin renders said shintercourse as void.

Jenny and I had some sweet shintercourse last night, so we didn't lose our virginity or get any STDs!

Robbie and I tried to have shintercourse last night, but our knees touched, so it was technically just sex.

by TrakPak February 28, 2017