"purple mountain's majesty" is a crayola color, introduced in 1993, that was named after an "america the beautiful" lyric.
Roth sings both "tramp stamp cat" and "tramp stamp tat. "
Roth sings "mousewife to momshell" over a vocal track of "housewife to bombshell. "
"sexy dragon magic / so very autobiographic" implies that some tattoos are not personal but superficial.
The phrasing of "autobiographic" suggests the words 'ought to buy a graphic', followed by the spoken verse "best believe that need'll hurt you. " "need'll" suggests both the words need will and needle.
"coal tattoo" is a permanent mark from coal embers burning and embedding in skin, an injury gotten from shoveling coal into a furnace.