1. The act of being repetitively struck on the anus with devastating force.
2. Before preforming anal sex with a back door virgin, you spank her rectum to "tenderize" or "loosen" the anus for easier penetration
2. Before preforming anal sex with a back door virgin, you spank her rectum to "tenderize" or "loosen" the anus for easier penetration
1 ex. "Yea man, last night at dinner Hillary got me Sphincter Slapped when she told my parents about my herion addiction."
2 ex. "While in bed with Hilary the other day i flipped her over and Sphincter Slapped her for anal preparation."
2 ex. "While in bed with Hilary the other day i flipped her over and Sphincter Slapped her for anal preparation."
by DoppelBanger6969696969696969 July 6, 2011

by GreenBird23 May 18, 2011

by southpaw365 May 2, 2014

(sfink-ter plinck-o)
The act of having a group of people bent over naked around you in a circle, and then using your erection to penetrate different anus' quickly and briefly at random.
The act of having a group of people bent over naked around you in a circle, and then using your erection to penetrate different anus' quickly and briefly at random.
"Oh man, my Friday night was awesome! We had a couple people over, had a few drinks, and played Sphincter Plinko. Talk about putting some stank on it, Yeah Boi!!"
by FuzzyDunnlopp March 19, 2017

1}"Hey darling, did you forget to flush the toilet
again? there 'sphincter clippings' every where...jeez!"
2}"Hey dumplin', it looks like somebody was air-brushing
the toilet bowl...'sphincter clippings' as far as the eye can
see..what the the hell went on in here!?"
again? there 'sphincter clippings' every where...jeez!"
2}"Hey dumplin', it looks like somebody was air-brushing
the toilet bowl...'sphincter clippings' as far as the eye can
see..what the the hell went on in here!?"
by bgdeee December 31, 2007

by LandysRockCandy January 26, 2015

A sexual manovere in which sum 1 proceeds to jump and land on there front will giving sumone a buttfuck
by Lucas December 31, 2003
