1. Covered in fur (i.e. a thick coat of fine hairs), like many mammalian species.
2. An anthropomorphized animal character, or an animalistic humanoid character. (Example: an anime catgirl.)
3. Media featuring characters as described in definition 2.
4. A fan of definition 2 and/or 3, especially online. Often misunderstood (and therefore mocked) as a sexual paraphilia and/or clinical zoanthropy, but rarely if ever actually "persecuted."
5. Pertaining to definition 4.
1. "I don't like Chinese Cresteds. A dog is supposed to be furry!"
2. "Does Kimahri Ronso count as a furry?"
3. "Foster's Spellsinger Saga is a furry series."
4. "Joe is a furry who usually plays a wolf on MMOs."
5. "I'm only going to that furry convention if you pay my way."