event: a Libby Moment is difficult to classify due to the erratic nature of its effects on the initiator, observer and the subsequent audience that hears about it later.

It typically begins with the initiator; the initiator will perform an act, ask a question, or make a statement causing the observer to think; did this really happen, was this really asked or was that really said, this thought is always followed with a facial expression, (raised eyebrows and small or large grin) that then causes the initiator to realize that a Libby Moment has occurred even if the initiator is not sure of the exact cause of said Libby Moment. The audience comes into play later when the observer tells their account of the Libby Moment, and everyone has a good laugh about it.

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.