Hi chrise, as syzygy is now unlikely to post before voting opens may I suggest he is referring to the Christmas tradition in some other countries when misbehaving children receive either a piece of coal or a potato in their stocking or shoe (sometimes combined with (a) "nice" present(s) to reflect the year). Perhaps he also has the same cynical/bah humbag attitude that I have and as they are traditionally low value gifts;
cryptically "tat wrapped in crap"?