Apr 13, 2011 · For this workshop we used Chinook Jargon (Chinuk Wawa), the trade creole of the Pacific Northwest, along with PSE (Pidgin Signed English), as a target language to demonstrate the WAYK system. Chinook Jargon is a language with a lot of rich history, with a core of Chinook language (from the Columbia River area) wrapped in French, English