Davy Jones' Gravy is a dark, murky fecal/water combination that is the result of a particularly non-solid bowel movement, obscuring from vision all below it's putrid depths. Commonly found in public restrooms and port-o-potties.

A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.