One who psychotically behaves as if everything is abuse or mistreatment of animals, defending them from people for little to no reason and often going to extremes in doing so; anifiscative
Some animal-lover screamed "CALL THE POLICE" when she found out that I hadn't given my dog a bath for a couple weeks.
"NEGLECT! MOVE OUT OF MY HOUSE," my animal-loving mom hollered at me when I told her I had left our bird home alone for a couple hours.
When some animal-lover on Yahoo Answers informed me that she was going to burn down my house and key my car if I ever yelled at my cat again, I just laughed my ass off.
The animal-lover next door reported us to Animal Control for leaving our miniature shnauzer outside for the evening in 60 degree weather, claiming it was much too hot for our dog.
I was accused of being an animal-lover when I told my baby sister that she should give the Turtle to a family who loves it and to go fuck herself because she didn't play with it for 2 days.