51% Attack

Abbreviation for: if you know you know. The phrase implies that the user has dropped some sort of insider knowledge about a specific experience. Often, the post will have some callback to a particular experience that will instantly stand out to those who are “in the know,” or ironically sharing commonly known information.

Algorithmic stablecoins are tokens pegged to a fiat currency which is usually the US dollar, purely through software and specific conditions.

In the context of crypto, oracles refers to services which verify real-world and provide data to blockchains/smart contracts.

KYC stands for "Know Your Customer", a process for business entities are required to verify its clients and assessing them.