Judging from the "language", and comparing notes, I assume, (which is BAD business, normally), that the "Loonie" is a dollar, and the "Twoonie" must be a two-dollar coin. The "threenie" being a joke, or april fools day prank, would indicate my thinking is correct. I am not familiar with the coinage, other than the cents, or more correctly put, the decimal coinage. I don't know anything about the half, and dollar, and/or larger coins, much less the terminology. Having rad a post by Andre1621 conserning a possible "struck-thru", I know what they are referring to when they mention a "loonie". Apparently taken from the Loon, there. Now: The "Twoonie" would indicate a 2-dollar coin, with the same device, (loon), right?
Dick