Ivan's name game

Ivan, unlike Nikita, is really into naming things. I think I have already written about how Ivan has his own names for Nikita (Ta-ta), Galina (Plapika), and himself (Nya-nya). Neither Nikita nor Galina like their names. Ivan also has a name for the elephant Santa Claus gave him: Eba. And he calls Nikita's dog Ebee. Finally, he has a name for people that make him mad: Picaca. As in, "Ta-ta [is] picaca!"