The Walmart challenge requires you and a couple other friends (preferably 2) to go to walmart and pick food for one another. The catch is that the person you are picking for cannot know what item you have selected for them. Once you have each other’s foods, you blindfold each other 1 at a time and have them try the selected food, hoping that one of them throws up

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.