When listening to Pandora the half-way rule applies, meaning that if one is more than half-way through a particular song then you do not skip the song.
This is done in an effort to preserve the 5 skips per hour allowed by Pandora.

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.