(n) A marijuana waterfall bong substituted with beer.

Directions:
Pour beer into a waterfall bong, sealing the bottom hole with your mouth.

Burn the marijuana bowl sealed at the top of the chamber. With the cannabis lit, chug the beer out of the bottom hole, drawing smoke into the chamber.
When only foam remains, tilt the foam away from the mouthpiece, and remove the slide/bowl.

Inhale the marijuana smoke through the same chamber.

Rumored to be invented in Pittsburgh, PA.

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.