You're the Man. Used to indicate that individual has exhibited the qualities of someone who knows their shit or is capable of coming through for another.
Similar to the terms "you 're the sh**", "you da shizzle" or "we cool dawg".
About as scatological as the original phrase but cleaning it up for those who rarely swear, if at all.
Generally reserved for some/anyone who's helped in a big way or has done something cool for one or a bunch of people.
Meaning: "you're too cool" or a similar phrase relating to coolness.