electronic toy by tomy(?). the furby is simply a small, poor quality motherboard covered in fur.
the furby can "interact" with humans. you can rub his tummy (press a button there), massage his back (press a button there), yell at it (sound sensors pick up loud noises and trigger a seizure for the furby), and blind it (cover the light sensor on its head and trigger another seizure).
when a furby first starts up or gets reset, it only talks (plays predefined words) in a limited, shoddy "language" called "furbish." as time continues, the furby "speaks" english - giving the illusion that by speaking to it, you teach it english (sort of like a little child). furbies cannot learn english from you; it has preset words. however, you can buy mod chips that make it swear.
the furby is known for being one of the most annoying pieces of shit ever. however, it went through a fad period where there was unbridled buying of them.
i cut the fur off my furby and now he looks demonic. he's a lot cooler now.