I'm all right Jack!
I’m all right Jack! is when you’re so full of yourself that you think the world revolves around you. It’s like you’re the only one who survived the crash and everyone else is just extra baggage.
I’m all right Jack! I got the last cup of coffee and you’re still waiting.
I’m all right Jack! I got the best job and you’re still stuck in the old one.
I’m all right Jack! I got the last ticket to the concert and you’re still waiting in line.