Retrofloof

Retrofloof (catfinition) – a time-traveling cat who insists on living in the past.

In use:

Lady, the little gray tabby with a tawny belly, was a retrofloof, disappearing as suddenly as she’d arrived, with as little explanation to it.

He didn’t worry; another retrofloof would soon show up. Other people thought retrofloofs were strays, but he knew that cats liked time-traveling, and preferred (from his experience and perspective, at least) to go into the past to relive their past lives.

How did he know the cats traveled into the past? They’d informed him that it was what they did. Not all who disappeared were retrofloofs, of course; some were alterfloofs, choosing to live in alternative dimensions. But Lady, she had told him, was a retrofloof.