G'wan

Irish slang for 'go on!'.

Used as an expression of enthusiasm.

Mrs Doyle ''Ahh, g'wan! G'wan, g'wan, g'wan g'wan!!''

G'wan

Its a urban word for ' go on'.

For eg: G'wan then, make me some toast... IE. Do it for me

wha g'wan

Used by Little Jacob (Jamaican character?) in GTA IV, it means what's going on.

Wha g'wan me bredda?

G'wan, b'y

Atlantic-Canadian slang phrase used very commonly in Nova Scotia and Newfoundland, translates word-for-word as: "go on, boy!" and is commonly used as a term of disbelief, as in "No, really?".
East-Coast Canadians also spell it as "Gowan b'y" in text form.

"Dere gon' be a flood!"
"Ah g'wan, b'y"