cryptodouche
Derogatory term for that friend of yours who won't shut up about Bitcoin, Ethereum, etc. Brags about his virtual millions and how early he invested. Often found unconvincingly rambling about how Blockchain will revolutionize something that's been working just fine for centuries.
"My gen0 CryptoKitties have already quadrupled in value since yesterday!" explained the cryptodouche, as he pulled up a site showing his expensive virtual pets.