Infinite Jest – David Foster Wallace discussion

I know - stupid question. But, I've tried to find the answer online, and none of the descriptions I'm finding are even close to making sense in relation to the story. From the context of the IJ sentences, I'm guessing it's a Canadian? Or maybe it's more specific and is a Quebecois?

Canadian, in this context particularly, french canadian

Right, shotr for cannuck

Oh, thank you so much!