When you put your hand into a glass of ice water for five to ten minutes (until it goes completely numb and cold), then masturbate. Extra points for wearing a fur cuff on your wrist.

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.