black "canadians"...an exercise in redundant redundancy....part I

i read an interesting blog post a few moments ago that blew my mind. in it, the blog author discussed how and the possible reasons why some white people call black people "Canadians." now, the idea alone that "white people call black people Canadians" was confusing enough.

Macon D writes in his blog, "What we have here is an example of a phenomenon that I've noted before, that of "whispering the word 'black.'" In certain situations, some white people use "Canadians" to refer covertly to black people when they think they shouldn't use another word. That other word probably isn't "black people" or "African Americans," but instead, a "worse" word. A more overtly racist word."

how is it possible that i have made it 36 years and have never heard that this is an expression used by some when they want to be slick and not use the N-word?? have i been sheltered? is this a regional thing?

have i actually every heard this euphamism before and just assumed the people talking were really talking about Canadians!?

i'm really conflicted about whether or not i'm angry, sad, or just resigned. i'm gonna work on this one a few days and blog back...