I call Casey "cry baby" because she is the biggest baby! When she wants attention or to be held she sits by you and cries.....of course we give in
Especially with my husband. He just melts when she jumps up and cries. It's just like a baby. Trixie has been every name in the book since she chewed up my son's ipod that he won in a contest that he worked hard for.
The rest of them pretty much go by their names.