The Boondocks referenced it explicitly as something that already existed (claiming Luther Vandross liked it).
As an Atlantan, I'm fairly certain a burger with Krispy Kreme doughnuts for buns was known to be a thing before that episode aired.
The Luther Burger
And those are real 'mericun quarter pounders mind you. Not those puny imported quarter kilogramers!
But... A quarter of a kg is more than a quarter of a pound _'
Not with that attitude it isn't
Back in college there was a restaurant on campus that sold "chicken donuts". it was a piece of breaded chicken in-between Krispy Kreme donuts with a slice of American cheese, and it was the most delicious thing I have ever eaten
Add some peanut butter
...especially the corn syrup everything is laced with.
And they say America has no culture.
Culture, yes. Class, maybe not. 😉