Binds when picked up
Use: Teaches you how to summon this companion.
Idles about and turns head.
Pit-pattering footsteps; vocalizations (on-click)
Falls in love with and chases Bombay Cat, Black Tabby Cat, Calico Cat, or a Feline Familiar.
This pet is rewarded via the mail when your character completes the "Shop Smart, Shop Pet...Smart" achievement. To complete this achievement, your character must possess at least 50 unique vanity pets. Upon learning your 50th vanity pet spell, you'll immediately receive this pet in your mailbox, sent by Dalaran's vendor, Breanni.
Note that Breanni's message asks you to care for him because he "refuses to play nice with others." The message also warns that Stinker "has a thing for black cats." So if he finds a Bombay Cat, Black Tabby Cat, Calico Cat, or a Feline Familiar nearby, he will fall in love with it and chase it around.
This pet is also available as a FigurePets collectible (series 1).