HODL is a crypto slang term that means to buy and hold indefinitely.
This means not selling when the market drops or becomes unstable because
Sometimes, it is said to mean "hold on for dear life."
HODL originated from a typo of "holding" into "hodling" in an online post in 2013.
Today, it is a core principle of many Bitcoin and crypto believers. The term originated from an online post in 2013 on the Bitcointalk forum where the typo appeared.