noun
1. an undeveloped idea
2. an idea that is not grounded in
reality3. an ill conceived plan that has no chance of coming to fruition
4.
something that does not exist in the real, or physical,
world
Geezer: …so this “crypto currency”, as you call it, which doesn’t exist in any physical form, is going to revolutionize the way the world transacts business?
Millennial: Yes…exactly.
Geezer: That’s just a unicorn fart in the wind.