1. Marijuana: This is the most common meaning of "herb" in slang. It refers to cannabis or marijuana, the dried leaves and flowers of the cannabis plant.
2. A person, especially a friend: This meaning is less common and might be used playfully. It can also be a way of referring to someone who is considered "chill" or "easygoing."
3. A "good" thing: This meaning is also less common but can be used to refer to something that is enjoyable or desirable.
Example:
* "Let's go smoke some herb." (Meaning: Let's go smoke marijuana.)
* "He's a real herb, always up for anything." (Meaning: He's a good friend, always willing to go along with plans.)
* "That new movie is the herb!" (Meaning: That new movie is really great.)
It's important to be aware of the context when you hear someone using the word "herb" to understand its intended meaning.