oh really

Interjection

Meaning

(colloquial, sarcastic) Said in response to an obvious statement.

Used other than figuratively or idiomatically: see oh,‎ really.

(colloquial) An exclamation of surprise or amazement.

Source: en.wiktionary.org

wow never really no seriously oh yeah no way no kidding no duh no shit

Oh really, I want to know how many you all dropped out, graduated thank you Lordy, or never went at all! Source: Internet

oh no Oh noes oh oh oh snap oh so oh well