often used in ireland dublin area, to cheer on and to embarass, mostly elongated to "gooooooowawn" often proceeds "spin it!" (which is shouted at random to get large groups shouting gooowawn)
(glenn falls and looks stupid)
large group of friends say "goooooowawn!!!" in sequence
random time of day
daragh says "spin it"
large group says loudly "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!!!"