Indoor Furniture is slang for a girls box in guy lingo. Ask a brother how the girl's indoor furniture feels and you are effectively asking "how'd the inside of her vagina feel?"

Other common uses:
"Did you get to see the indoor furniture?"

"Was the indoor furniture comfortable?"
"I spilled all over her indoor furniture!"
She had some raggity indoor furniture (She was not well groomed)
Her indoor furniture was kind of slippery (She's a squirter)
Her indoor furniture was really worn! (Man, she loose as hell)
by MattMastaP June 10, 2015
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