1. I am in a state of generally satisfactory health or wellbeing. A: "How are you, Tom?" B: "I'm good, thanks."
2. I am not hurt or sick; I am all right. Used especially to express that one is not too hurt or sick to do something. A: "You shouldn't be walking on that ankle!" B: "Nah, I'm good! It's just a little sprain!" A: "Are you feeling OK? You look a little green." B: "I'm good. I just need to get a little fresh air."
3. I do not need anything else; everything is satisfactory. A: "Would you like anything else to eat or drink, sir?" B: "No thanks, I'm good."
See also: good
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.