killer rack Share definition Flag Cleavage that will hypnotize all straight men, and maybe a few gay men. A phrase used by Will and Grace's Karen Walker. I have a killer rack. I hypnotized him with my killer rack. killer rack by AnastasiaBeaverhausen72 April 25, 2006 0 0 Get merch Get the killer rack mug. Buy Now — $32.95 See more merch