Frito-Lay is kicking itself for their cheesburger flavored Doritos because cheeseburgers aren't usually associated with the Yum! Brands umbrella. What's better than crappy one-off marketing gimmicks? Marketing gimmicks that cross promote!
The flavor initial reads as lime, but it's too synthetic and sweet to actually be lime. My first guess was margarita, but Mountain Dew fits perfectly.