G'wan, b'y
A phrase that Nova Scotians and Newfoundlanders use to mock you when you say something stupid and they're too lazy to say anything else.
G'wan, b'y! You think it's snowing outside? It's just the sprinklers!
G'wan, b'y! You actually thought you'd win the lottery?
G'wan, b'y! You tried to talk to the cat and it ignored you!