GrauGeist
Generalfeldmarschall zur Luftschiff Abteilung
Never heard that term.The Allied pilots did however, nickname the Zero the "Sky Demon".
I do know they'd call out "Zeros", "Zekes" or (and my apologies for this term) "Japs". They were also known to use expletives (sometimes even on the radio) when referring to Japanese fighters.
My Uncle Jimmie was using the term "fork tail devil" before the alleged time the Germans were said to have started using it.
Also, the Germans typically used the aircraft's name: "Lightning", "Spitfire" or in the case of the B-17: "Boeing".
Rarely would an enemy glorify an adversary with glowing nicknames.