Bitcoin is a cryptocurrency created in 2009 by an unknown person (or people) using the alias Satoshi Nakamoto. Unlike traditional currencies such as the US dollar, bitcoin isn’t controlled by a bank or government. Bitcoin is by far the most valuable and popular cryptocurrency in use today.

Blockchain

A blockchain is a digital ledger and the key technology underpinning most cryptocurrencies, non-fungible tokens (more on those later) and other unique digital items.
Blockchain can be used to store all kinds of information, but so far its most common use is in recording cryptocurrency transactions. Once a transaction is made, it’s entered on this public ledger, which is managed by a global peer-to-peer network — millions of computers, in bitcoin’s case.
Blockchain is fundamental to bitcoin’s appeal: As a decentralized database, it can’t be controlled by any one person or group — unlike a fiat currency such as the US dollar, which is managed by a central bank.

Buy the f****ing dip (BTFD)

A rally cry for crypto bulls that urges investors to buy coins when prices drop.
The leading cryptocurrency exchange platform. The company went public in April, an event that many viewed as a turning point in the story of cryptocurrencies’ journey into the mainstream marketplace.

Cryptocurrency

An all-digital money system made up of “coins” or “tokens” that are controlled by a decentralized ledger.
Source…