Slang that originated from /pol/ that is used for Great Britain (mainly England) to emphasise the Muslim immigration. A mix of Britbong and *stan, which is a common suffix for Muslim ex-USSR countries.
Generic term for any of those backward Third World countries which are always in turmoil, always the scene of disasters, civil wars, famines and Islamic terrorism. Somewhere between Iraq and A Hard Place.
Where was it that Osama was hiding? Wasn't it Bongostan?