Either a male human that is half-cat(thus having cat ears, a cat tail, and paws) or a male cat that is half human(thus standing upright and having slightly more human anatomy.)
Sometimes also used to refer to a male that acts like a cat.
Used to describe a gentleman that on a night out attracts a lady or ladies only to bring them back home and loose interest. Similar to the actions of a feline that might return with quarry to leave it upon the door mat.
To act with the attention span of a knat.
One who emulates a feline in pursuit of partners.
I see he is being his usual catboy self, bringing back birds and doing nothing with them.