Gröfaz

Etymology
. First attested in 1943, apparently coined to mock Nazi Germany's love of long and obtuse abbreviations and Adolf Hitler's megalomania.

The term was most likely coined in Berlin, where the word "Fatzke" was in common use to describe a thoroughly unpleasant, arrogant person, and the term was used to prevent offending Adolf Hitler publicly.

Noun

 * 1)  Adolf Hitler