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4.
1) A derogatory term for a Canadian.

2) A professional who was educated in a Canadian college and is usually an immigrant.
1) Those frostbacks are so stupid they think THEY burnt the White House in 1812 in place of the British.

2) My doctor is a frostback.. He had to leave Canada because Canada can't afford to pay their professionals enough.
by The Sub February 04, 2005
 
1.
a canadian
those stupid frostbacks left canadian bacon and molson bottles all over our front lawn
by the_grim_reaper May 31, 2003
 
2.
A canadian.
"Frost back" is to Canada, as "Wetback" is to Mexico.
by 5th Column May 31, 2003
 
3.
Noun. Term for Canadians who have entered the United States either legally or illegally for the purpose of obtaining employment. Common reasons for their emigration are; lower taxes, warmer weather, and cheap cigarettes.
Those stupid frostbacks left canadian bacon and molson bottles all over our front lawn.
by Bomtech October 17, 2007
 
5.
A Mexican who has been/lived/lives in areas such as Canada, Alaska, Antarctica, etc.
That guy's mexican.

Really? Here in alaska? he's a frostback
by Zebrazzz March 14, 2010
 
6.
Synonym with Molson, Molson Canadian, Momo.
by Adict June 11, 2003