[Dr. Pritchett]

I know, right!?!?

BTW, can we please put “I know, right?!?” on the list before I give some one a knuckle sandwich?

[Erasmus]

That’s right up there with the hostile rhetorical “OKAY?” intended to forestall any further discussion when it is obvious that listener will not accept what the speaker just offered, and the speaker knows it.

[equaviator]

“Are you SERIOUS?...”