DCHP-2

Canadian tuxedo Canadian tux DCHP-2 (July 2016)

n. — Clothing, informal, at times jocular
a combination of blue jeans and denim jacket (see Image 1).
Type: 1. Origin — Known also by other names, such as Denim Dan style, Canadian tuxedo has gained currency in the youthful crowd as of the mid-2000s (see the 2012 quotation). The term is most popular in Canada (see Chart 1), but is not unknown in other countries.
See also: toque

Images:

Image 1: Canadian tuxedo wearer on stone turtle (Source: Wikimedia Commons. Photo: rococohobo)
Chart 1: Internet Domain Search, 16 Jan. 2014