No takers? Was the clue too hard or is no one interested?

Here are some hints, in case it was the former:

Hint #1:
The clue did not contain any typos.
Hint #2 (answer length):
The answer is three characters long.
Hint #3:
Although people in the U.S. might be more likely to get the answer, much of the rest of the world has had the very dubious pleasure of experiencing this bit of American "culture." (I use the term loosely.)

If no one gets the answer by this time tomorrow, I'll go ahead and post it (spoiler protected), along with the explanation.

Joy,
Lynn