go on

A surprised reaction to outrageous news (good or bad). The way it is said indicates whether it is a happy surprised or a bad shock.

A happy "go on" is usually ran together to sound like, "gwan", whereas an upset or shocked "go on" sounds more like, "go...wawn".

Sally: "Guess what, I got the job!"
Mary: "Go on!!!"

by newfie4L August 13, 2007