A person who has zero friends, denies everything true, has infinite money, buys very expensive things, makes up an excuse for everything they do wrong, thinks they are the best at everything, racist, insults everyone and every now and then says things in a British accent.

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.