When a person becomes very depressed, their friends check the person's wrist in case they cut themselves.

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.

People tend to ask for wrist reveals because they have a wrist fetish but they don't want people to know, so they act really mean about it and try to make it offensive.