Squirrel And Moose - Tumblr Posts

Okay in Supernatural, Crowley called Sam and Dean, Moose and Squirrel, respectively.

I just always thought these were nicknames but now I realize he may be making a reference to The Adventures of Rocky and Bullwinkle? Rocky is a flying squirrel and Bullwinkle is a moose. They are best friends. Bullwinkle is described as being dim-witted but good natured which definitely seems like a way that Crowley would describe the Winchesters.