*Raises hand*
Hi I speak fluent Canuck. Annotations included
Sparkuri means that if he knew he was betting Canadian dollars (loonies, because there's a swan on the Canadian single dollar coin), he'd be betting an ice cooler (knapsack, since they're quaint about what they call modern inventions kind of how Brits might call a flashlight a torch) full of beer (2-4, as in a 24-pack of beer since Canadians tend to buy all their alcohol in bulk), and sending it directly to his horse, or more specifically the stable where he keeps his horse (hoose is the Canadian pronunciation, and post offices often double as horse stables in Canada for convenience). However, if he's speaking the Maritimer dialect, "hoose" could also mean "hose", which is Maritime Canadian for someone's meth dealer (hose = connection), and it'd be very convenient to pick up beer from the same person you're getting your crystal meth from. Canadian drug dealers are extremely polite and accommodating like that.