The Webkinz Grumpy Cat is a Webkinz pet that was released in March 2014. It doesn't have a Lil'Kinz, it isn't retired, and hasn't been Pet of the Month. Its pet specific item is the Crotchety Cat Bed and its pet specific food is the Bad-Tempered Tuna. Grumpy Cat is even grumpy online! It says things like "I woke up for this?" or "I only like peace, quiet and tuna."
Meet Grumpy Cat. She had fun once, and hated it! She much prefers her Crotchety Cat Bed, an oasis of unimpressed cattitude! And if she absolutely HAS to accept food from you, make it Bad-Tempered Tuna, a grouchy alternative for an unconventional cat.