Furry

A furry is a person who dresses up as an anthropomorphic animal, occasionally they use plants or machines instead of animals.
Common traits of furrys are
Vehement denial that they are a furry
Spending large quantities of money on artwork
Naming themself after plants (e.g. rose, lily etc. (This is specific for plant furrys))
Owning large quantities of fur covered objects

Not being straight

Person a: I heard person b is called lily
Person c: definitely a furry