1. Skilled and adept: This meaning is used when describing someone who is very good at something, particularly a physical skill.
* Example: "He's got a mean hand at poker."
* Meaning: He's very good at playing poker.
2. Harsh or cruel: This meaning is used when describing someone who is unkind or ruthless.
* Example: "The boss has a mean hand with his employees."
* Meaning: The boss is very strict and harsh with his employees.
It's important to pay attention to the context to understand the intended meaning of "a mean hand."