The Indian is saying: "The deal was for two jugs of fire water, not just one."
And the merchant trader is trying to upsell him on a smallpox infused blanket while they try to find the missing jug of fire water.
'Up yours' reminds me of my partner whose personalized license plate was UPURS2.
He got away with it for nearly a year before it was 'recalled'.
Don in SoCal