Frost Bags Share definition Flag A slang term for a Canadian. Taboo term for a Canadian crossing the border and entering the U.S. Yo dude call the border partol, freakin Frost Bags jumping into the US border. Frost Bags by C0rky December 30, 2007 0 0 Get merch Get the Frost Bags mug. Buy Now — $32.95 See more merch