A secreted bathroom, typically in a large and winding house that one can dump like a truck in with enough getaway time to not be caught. Also ideal for hiding.

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.