well snobby means rich type who looks down on people they class as lower class. brat is someone who is like spoiled and gets everything they ask or throw a fit over. so together its hell.

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.