An somewhat derogatory American term a French-speaking Canadian, generally a quebecois (person from Quebec). A pretty simple etymology, really; "snow", indicating the eastern Canada's cold, perciptation-heavy winters, and "frog", a derogatory term for a Frenchman. See also quebe.
Horace: That jerk with the Quebec plates cut me off, then swore at me in French!
Eustace: Damned snow frog!
Eustace: Damned snow frog!
by Cosmo May 26, 2006
by Caribou September 22, 2003