Shhhhhhh. Don't mention
butts with Coca-Cola. You might get in real trouble for asking that question.
Look, even if there were some guys that do it.... we will, uh... I mean they will
deny that you let the Coke go flat, will claim they don't mix it with some pork (or ham) stock, and will refuse to admit that they also use a little spicy marinade (like Tiger Sauce, or jerk marinade) in there too. Coke can't possibly bring anything to the party (like sweetness or moisture), nope that doesn't happen. And lastly, if anyone tries to tell you that Mexican Coke is better because it has pure cane sugar in it (instead of good 'ol high-fructose corn syrup like our Coke does), that's just BS.... tell them something like "Hey Pal, I might have been born at night, but it wasn't last night!!"
It sounds to me like someone was just blowin' smoke in your direction to throw off your focus. Don't believe 'em. Heheheeeee.
And one more thing, remember that funky ad campaign, when Coke had a different slogan every year? Don't think for a minute there is any hidden meaning in these.....
1956 - Coca-Cola ... makes good things taste better.
1963 - Things go better with Coke.
1976 - Coke adds life.
1982 - Coke is it!