Pain is measured in units of "dols". The instrument used to measure pain is a "dolorimeter".
The first time you see “HODL” when someone is discussing cryptocurrencies, the word causes you to stop reading. You think: “Is it a misspelling?” Well, yes it is – at least it was mistyped originally. Now, rather amusingly, HODL has spawned a life of its own. It has evolved to represent a long-term trading strategy and philosophy for crypto investors.