Groups of women (knowingly or unknowingly) competing in a war of sexual prowess by way of changing dress sense, hairstyles etc in order to impress or compete for potential mates or to raise their visual sex status.

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.