Hmm. I'm wondering what the "-stan" ending means. Wikipedia on Londonistan is unenlightening, So then I tried "-stan" It seems it's a Persian (i.e. pre-muslim) suffix meaning "home of". It has no religious implications, per se, although a lot (all?) of the countries with -stan endings have significant Muslim populations. I remembered that India used to be called Hindustan. Turns out that Hindustan is a term for pre-Muslim India. Interesting, eh? So Londonistan would be the home of London!