Floof Out (floofinition) – Animal who reacts to another animal with an overly ostentatious display.
In use: “A doe stole into the yard and began nibbling at the grass. Star rose up with an outraged howl and glared through the glass at the interloper. Sighing, Barb said, “Stop the floof out, Star. It’s just a deer.” Then she took a photo of the cat and deer and posted it on Facebook.”