my bad(redirected from my bad!)
That was my mistake; I admit that that was my fault. Primarily heard in US. Susan: "Jerry, I asked you to do the dishes an hour ago, and they're still piled in the sink!" Jerry: "Oops, my bad, honey. I'll do them right now."
phr. It’s my fault and I’m sorry. My bad. It won’t happen again.
Used to acknowledge that one is at fault.