Brosef Goebbels
comes from the name Joseph Goebbels, a high ranking member of Hitler's third reich. It is a variation of the term Brosef except used when someone who previously was a Brosef started to be a dick about things. Similar to Brosef Stalin, but in a more sinister/asshole way.
Dude, just quit being a Brosef Goebbels, and stop threatening me with blackmail, it's not cool.