Withdraw so fast (from the back side and often times without lubrication) that what is pulled out looks like a rolled up pink sock. Also known as an inverted starfish.
Dude, the donkey punch didn't knock her out like you said it would; instead she bucked me off so hard that she she gave herself a "pink sock."
After anal penetration when the males member or device is removed from the anus the inner anal passageway folds out surrounding the extracted shaft and exposing the inner side of the anus. The pink socks appear's like folds of pink skin hangin out of the asshole. It slightly resembales a pink sock hangin out of the asshole .also known as a pink shit
After i pulled the dildo out her ass she had a pink sock hangin out