n. — Manitoba, Saskatchewan, Games
holding on to the back of a vehicle on a snowy or icy road in order to be dragged along for a ride.
Type: 1. Origin — The term is most common in Canada (see Chart 1). While internet hits are virtually restricted to Manitoba (see Chart 2), the practice is also common in Saskatchewan as the quotations show. The term is used primarily in the spoken language, and though it is a low-frequency item on the internet, the regional spread needs to be corrected to include Saskatchewan.
See also COD-2, s.v. "bumper shining", which is marked "Man. & Sask.".
Images:

Chart 1: Internet Domain Search, 9 Oct. 2013 
Chart 2: Regional Domain Search, 19 Nov. 2013