my sorry

When one intends to use the slang "my bad" in place of "im sorry", implying that they are at fault or apologetic for something they've said or done. But what comes out in result of a brain fart is a combination of the two, hence "my sorry".

Jesse: Hey man! You just stepped on my blue suede shoes!

Larry: Oh my sorry!...I mean I'm bad...I mean I'm sorry!

Jesse: Huh wtf?