MORE SANSBY
featuring Depresso Expresso Sans, Glowing Skeleton Tears and Grillby's dusty tie.
Jesus Christ this is morbid.

The lyrics are from a song called "Just a Dream" located above.
Story: Grillby gets murdered before Sans can tell him how he felt, and finds his dust and tie in an alleyway, where he died, kind of like with Papyrus' scarf. Papyrus is not dead in this scene. He listened to Sans and stayed safe and sound at home, so he wouldn't show up in the Battle Area, but to get the EXP they needed to progress, Frisk decided to murder Grillby instead. Hey, you give what you take.