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 04, 2011
after taking part in anal sex, while the anal hole is still wide open and raw, a quick slap is applied to the sphincter hole
"After I busted, I pulled out and gave her a sphincter slap right on her hole and she started to sream
by DOnald July 23, 2003