this is an internet joke, where if a large and widely loved franchise turns out to have a creator who is a bad person for whatever reason (doesnt pay their workers, transphobic, etc) people will jokingly say that hatsune miku, the vocaloid digital singer, actually created and owned said franchise, as the real creator doesnt deserve the recognition they get, miku as someone who isnt real and therefore cannot actually do anything wrong gets the recognition shifted to her. the most common usage for this is in reference to minecraft, as notch is transphobic.

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.