Further to the Big Six
, Big Sixer refers specifically to the Mainland Chinese tourists in Hong Kong, who possess some, if not all, of the attributes described in the Big Six
entry. The addition of the -er makes it clear that it is the people it is referring to, as Big Six, taken literally, means only "Mainland".
On September 28, 2010, a big sixer kid defecated outside a shop in Harbor City, a high-end shopping mall in Hong Kong.