dirty Amelie, the unique technique of painting done by constantly being "high as fucking shit" and using a chewed worm on a string as an instrument to paint with.

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.