What is the meaning of fix in slang?

Excuse me, could you please clarify the meaning of the word "fix" when used in slang? I've heard it in various contexts and it seems to have multiple interpretations. Is it related to repairing something, or does it have a more figurative meaning? I'm particularly interested in how it's used in the world of cryptocurrency and finance. Could you provide some examples or scenarios where "fix" is commonly used in slang, and what those instances might signify?