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2.
Used to describe a situation in which a person, usually a teenager, has access to a house, usually a relations, because of their absense.
Hey guys, Party at mine on Saturday, I've got a free house!
by Frank Ellis August 24, 2007
 
1.
When no one is in (eg. parents) and you can invite loads of people round and have a party...
"Hey i've got a free house wanna have a rave"
by Alexxx.. April 10, 2007