Grammar police - it's Koolaid (with a K)
I used to bring packets of the phoney grape stuff back from overseas, Customs once thought it was purple coke (and I lost the lot). It left a powerful purple stain if you touched it with your fingers (which kids did a lot of - licking a finger and then dipping it in (as if it was sherbet). I said to the Customs woman (that pinched my Koolaid packets) that I would be on the look-out for her mates with purple nostrils. They never charged me, but I never got the stuff back either. Now you can get grape Fanta here - tastes the same, but it has fizz.
The last I saw of my Koolaid was at Cairns airport, yet I would find it hard to believe that RoLy and Jezza are swilling it together - but, you never know.