The term used for women attached to a domicile as a perk (like renting an apartment that is already furnished).
From the movie Soylent Green:
Shirl tells Thorn that she's getting a new tenant
Det. Thorn: He'll like you. You're a helluva piece of furniture.
Shirl: Don't talk to me like that. Please.
Det. Thorn: OK.
By Ariela
Furniture
When at least three guys in the same livingarrangement have gotten on the same girl, she is referred to as furniture.
"Hey, wanna come over and help me move some furniture?"
"Whoa, that was some heavy-ass furniture."
"Dennis and I burned some old furniture last night. It was danky."