That person with whom you’ve chosen to self-quarantine, and with whom Sex eventually came into the equation, even though you hadn't previously co-habitated, had no official commitment, and towards whom you may or may not have harbored an antepandemic crush. It may be an old flame, an ex-husband or wife, a colleague or simply a friend, but for some unexplainable reason your hidden Self chose that person as your shelter-in-residence mate.

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.