Totally Hydroponic Cola?
lol..
pun intended.
Red bull and coke eh?
coulda picked something simpler like Jolt and Coke, just call it Joke or Joke-a Cola... or Jolke...haha
Edit- if you wanna keep "Holy Crap!"
Consecrated Jazz and Pure Craziness are made from words that are Synonyms to Holy and Crap.
And I'm pretty sure they aren't used.
Or even Consecrated Craziness, Righteous Fantasy and many others also fall into the synonyms for crap...lol but as seperate words...
Bull is also a synonym for Crap...makes all the people saying "Bullcrap" kinda silly-looking doesn't it?
So red bull also means... Copper Crap. (or Burgundy Crap if you want to get more technical)
If you dont like those, go to thesaurus.com and search for more synonyms.