During non-lubed anal sex the male pulls out abruptly and savagely, leaving the rectum in question protruding like a rolled up pink sock.
Viv: Damn girl you look sore!
Sally: Yeah that bastard I went home with last night pink socked me, and now my farts sound like a New Year's eve party favor.
When a woman runs out of tampons so she grabs her sock in distress and stuffs it in her cooter for the time being. The sock becomes pink and is never to be worn again
Yo last night I hooked up with Natalie and she when we were done she was bleeding everywhere so I Pink Socked her