Err Rite Edit Meaning

1.

An expression of disgust or disbelief, said when somebody repeats something that has been said or done earlier, especially if somebody is being two-faced. (similar to "as if")

Betty: "By the way, I think you should know that Bill said you're a man whore."

Bob: "Err rite!"

Bob: "I pick my nose and eat it"

Betty: "Err rite!"