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1.
the "other" states for Alaskans, Not including hawaii. also called "the outside" and "hell."
"I'm fixin' to go to the lower 48, cause there are no jobs in the winter."
by asmbk June 17, 2007
 
2.
Any US state other than Alaska. A term use by Alaskans when speaking of other states.
I am flying out tomorrow to visit friends in "the lower 48".
by Holly Juneau September 05, 2008