The fandom name for the relationship between Lucius and Narcissa Malfoy from J.K. Rowling's popular Harry Potter series. The two are the parents of Harry's rival Draco Malfoy. Rowling has stated in interviews and shown in the text that the two have an affectionate and loving relationship.
"Say, sport, why hasn't M. Night Shyamalan directed any good movies in over a decade?"
"He appears to have undergone a lucastration."
"Oh, it's that serious?"
"I'm afraid so."
Has to do with a male that is having sex, and that night he gets one loose girl and is lucky enough to fist her, because most girls do not allow guys to fist them so when they do, you're lucky.