sock to knobratio, days out of the week that you're unable to sleep in your dorm because your roommate is having sex in your bed, often indicated by a sock on the doorknob.
"Hey, pat, you look tired, what's up?"
"my roommate's giving me a 4:7 s:k ratio"
"ouch dude"
See sex, dorm, roommate, asshole, dicks, nipples, vaginas
