Son Of Sam
The nickname of late 70's serial killer, David Berkowitz who killed or injured several victims with a .44 caliber gun. His reign of terror lasted a year and his effect on pop culture has carried on since in all forms of media. Although Berkowitz was caught and convicted, the case remained open as of 2004 because of unresolved facts from the crimes.
In this episode, when Niles Talbot is about to 'execute' the go-go dancer he gives his take on not having a problem getting women and he mentions "They'll be on their backs faster than you can say, 'Son Of Sam'.