Kaiser Cobra likely alludes to the real world "King Cobra".
[view·edit·purge]Kaiser is the German title meaning "Emperor", derived ultimately from the name of Julius Caesar. Many languages use a descendant of the word Caesar to mean "emperor", such as Russian царь (tsar) and Greek Καῖσαρ (Kaîsar).
[view·edit·purge]A cobra is a venomous snake from the family Elapidae native to the desert regions of Asia and Africa. Cobras are most easily recognized by the flap of skin that surrounds their heads in a hood-like shape. Cobra is also the Portuguese word for "snake."