a sock you put on your ass whether you are cold or trying to catch fecal matter. word also commonly used for ridicule. a buttsock is also used to catch a fart and bring to ones face.
by mr seville November 21, 2006
When you've had so much anal sex that your insides come outside. Resembles a pink sock hanging out of your ass.
by AndiAnomaly July 11, 2008