A worker of wood with little or no natural skill or art and neither near association of technique nor constitution that could be considered conducive towards the production of acceptable carpentry.

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.