Nazifail is a fail so hard
core, that in its happening, millions suffered and subsequently died from it.
Just "Fail" alone isn't strong enough, not when it comes to covering the fail-bases of the more epic 'fail' types. If
something fails on a far more grandiose scale than your typical run of the mill generic brand fails, "Nazifail" is the word you'd use to describe it.
To "nazifail" is the worst fail level one can achieve, for there is no level lower. And just like the Nazis, this fail refuses to
die (or
even acknowledge that it is a fail) even though the smarter majority of us greatly wish it to.