Mexican superman is Mexican man that mows your lawn, rakes your lard, takes your trash out, all the typical Mexican shit, etc. He is basically superman except Mexican. Surprisingly he is not poorer than regular super man despite being way shittier and way more Mexican than super man. Instead of kryptonite being his weakness Mexican Superman weakness is paying taxes.

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.