"To sell" is a piece of trader slang derived from the English word sell, that is, to sell an asset on an exchange.

A beginner (noob, newbie) is a person who has just started to learn about cryptocurrencies or has recently appeared in a themed community. The term describes a level of experience, not a judgment of the person.

In Russian-speaking slang a "loss" (from the English loss) is a nickname for a trading loss on an exchange. Most often it refers to closing a position with a loss of funds, including when a stop order is triggered.

A dev is a colloquial name for a developer, that is, a specialist who creates and maintains the code of cryptocurrencies, blockchain protocols, wallets, and related applications. The development of a project largely depends on devs.

Get Rekt is a slang expression meaning the crushing failure of a trader or investor. It is most often said of those who suffered large losses due to a bad trade or a sharp market move.