Free House 

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"

Free House by Alexxx.. April 15, 2007

Free House 

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!

Free House by Frank Ellis August 30, 2007

Free House 

Term used by majority of teenagers both in person and on social media to imply that ones parents will not be home, used to have sex and parties or hopefully both

Slut - "Someone come over, parents are going away for the weekend, free house"!

Free House by i'mlikeheywhatsuphello June 13, 2016