The act of masturbating on a Pirate Boat amusement park ride and ejaculating when you’re at the highest possible point of the ride to hit the people on the other side.

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.