We call her a lot of things depending on the level of stress of the situation, here is a sampling:
Kate MARIE!! (usually when she is heading up the stairs)
Stink Stink (not so much anymore :( )
I actually think the list is a lot longer, but it is late. I will have to add some more when I think of them because if I can't remember them now, I surely won't in 20 years!