It's Juice! Juicy juice! E-liquid or liquid or any of the others just doesn't sound right for me.
Don't like "vape" either. I'll usually take a puff or a hit, or a smoke...yes, I know it's not smoke but take a vape just sounds odd, not to mention having to explain it if someone doesn't understand.
Now, if you'll excuse me, I'm off to check on my steeping juices