Moon: sudden, rapid and extravagant appreciation of a cryptocurrency. Can be used as a verb, or in the sentence “XRP to the moon!” Inspires a lot of “art” on the message boards (see below). Sometimes when people are particularly excited, it’s “We’re GOING TO PLUTO!”
Lambo: what you can buy with your crypto after it moons
HODL: in 2013 somebody who was clearly inebriated posted that he was not letting go of his BitCoin even though it had just crashed pretty badly: I AM HODLING. If you HODL long enough and your cyrpto moons, then you can get yourself that lambo!
dETHroning: What happened when Ripple/XRP’s market cap exceeded the market cap of Ethereum/ETH in late December 2017
Rippening: What will happen if Ripple/XRP’s market cap exceeds the market cap of BitCoin/BTC.
Altcoins: cryptocurrencies that aren’t BitCoin.
Shitcoins: for some (especially “BitCoin maximalists”), synonymous with altcoins.
Whale: someone who owns a significant fraction of a crypto’s market cap. Since these things typically start at fractions of a cent, it’s easy to amass a chunk of the currency before it moons (or before it gradually ramps up). Later on, traders who don’t understand why a price isn’t mooning, or even budging, on good news, can just blame the whale for selling.