The action of taking a large amount of cryptocurrency and stockpile it with the anticipation that it will grow in value.
In margin trading, going long is the process of betting something will increase in price using leverage in margin trading. One essentially borrow money to purchase more of an asset than his/her available funds. If the price increases as expected, they will earn more profit than they would have without borrowing the money. If the price goes the other way, one would lose his/her original fund.