One of the best guys you'll ever know. He may be goofy at times, but he'll stick with you through thick and thin. Don't piss him off because he's a very determined person. He'll make your life a living hell.

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.