Questions about example sentences with, and the definition and usage of "Pretttty"

A: I don’t really know the full context, however I’ll explain the second part a bit. So if you are being ‘the’ man it is seen as a compliment. Like if someone is really helpful and sort of cool it’s like “Oh, you’re the man!” So I think that might be what the last bit is sort of getting at when they say ‘the man.’ It’s kind of like slang, maybe they were doing a play on words?