look up any word, like blumpkin:
 
2.
Used to describe any random country in the Middle East, without having to be specific.
Y'know....ol' Mohommad over in Fillintheblankistan...
by Clayton Bigsby April 19, 2005
 
1.
One of a dozen ex-Soviet satellite countries of western and southwestern Asia.
Out of all the Fill-in-the-blank-istans, Afghanistan is the most beautiful, especially the snow-capped Hindu Kush mountains.
by William Dean A. Garner January 28, 2011