Home-home is the most common way students refer to the place where they originally came from, rather then where they live whilst at university, but can be used by anybody who is living somewhere other then where they were born.
"I have to go back and pack because I'm going home-home this weekend"
by Melbell August 06, 2005
home or city of a certain individual's parents or legal guardian
I am going home home for the weekend.
by urban_anonymous September 22, 2011