This truly is a shit post. Confuses everyone because it doesn't actually confuse anyone.
Tbh I think I understand what the joke is supposed to be (Canadians and bagged milk), but it's just a pitcher of milk and it would seem that no one's actually weirded out by it because of that.
I was confused because i kept seeing bagged milked in the comments but in hungary we have it but the bag is cunstructed in a way that you can use it to pour.