Brora is a scottish village and home to most reviled form of humans imaginable. Inbred idiots who at their most intelligent have IQ's sometimes the same as, but never exceeding that of a fully institutionalised retard.

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.