An animal of the family of Felidae, generally a domesticated cat, which is not kind to his/her owner, other cats, and/or homo sapiens. Many do not enjoy human contact and are selfish in nature. It is generally advised as an owner to de-claw these types of animals to avoid possible injuries such as: scratches, bleeding, lacerations, and puncture wounds. Other treatments such as medication on Prozac tend to help keep these animals calmer and less of a hazard to their surrounding environment.
As her boyfriend stroked her cat it bit him, so he proclaimed that it was a "mean kitty"
The mean kitty plundered through the house and attacked it's owners feet.
"Your cat is one mean kitty!"