I read http://xkcd.com/123/ but do not understand everything :S

I not know as put the image, David explain me please.

no entendí nada

He was an especially trenchant critic of the incorregible American tendency to Political Correctness, whether of Left or Right, and the substance of Main Street is an amusing and often deadly account of one young woman's struggle with the idols of the contemporary bourgeois tribe - in this case good housekeeping, male superiority, intellectual nullity and the Grand Old Republican Party.

haber si alguien me puede ayudar

elderly

"mayor de edad"... "she was also elderly, safely out of the way in Europe"...

spurned

en el contexto creo que es algo asi como "rechazar"... "who spurne"d the prize committee preferred...

wealthy

tampoco la había visto antes---

wealthy: having an abundant supply of money or possessions of value

priggishness

no entendí muy bien pero creo que es algo asi como "pedante"

está es la def: exaggerated and arrogant properness
propernes: correct or appropriate behavior

overwhelmed

no sabia que es y tampoco la había visto antes, es "abrumado"