also known as the "FUR BIKINI" it is when a girl does not shave her pubic hair and it moves from the vaginal area down to the knee caps.. it creates a wild curly black forest wandering down the legs.
Person 1:Wow did you see Erin's furby?
Person 2:Yea it came down to her knees
Person 1:Yea it was gross!
Laura:I am so glad that furby is your roommate Rachel and not mine.
Rachel:Yea she walked around in her underwear with her furby hanging out I will have nightmares for weeks!