DCHP-1 Online
boisson [< Cdn F en boisson drunk] Fur Trade, Hist. 
n. a session of heavy drinking that accompanied the trading activities when Indians or others visited a post.
See also: wabbano (def. 1b) whisky feast
- 1802 (1897) This was exclusive of about four kegs of mixed liquor I gave away during the boisson. . . .
- 1893 (1908) There they remained for a fortnight, which was little better than a prolonged boissons or "drinking match". . . .
- 1957 David hated trading because of the grand wabbana, the boisson or drinking bout which had become an inseparable part of it.
- 1802 (1897) This was exclusive of about four kegs of mixed liquor I gave away during the boisson. . . .