Definition of "furbaby"

Mrs. Jackson still kept doggie biscuits in her pockets, even though her furbaby had died two months ago.

2007, Barbara Karmazin, Night Moves‎, Loose Id, published 2007

As I took the satiny-furred cat into my arms, his purring ratcheted up a couple of notches. Brian stood looking at the two of us, grinning, then said of the malnourished creature, “I guess we have a furbaby!”

2012, Marion Arnott, “Another One in from the Cold”, in Marie O'Regan, editor, The Mammoth Book of Ghost Stories by Women‎, Constable & Robinson

He looked down at the puppy fast asleep in his arms. Maybe this furbaby would slow down the ticking of her biological clock, too.

2015, Kallypso Masters, Nobody's Dream‎