How do you spell this word? I think it's Russian.?

OK so my great grandma is silly and she calls me this word that (from my understanding) means slut/whore/acting like a whore (she is joking). Something like that. Her mom came here from Poland but at that time Poland was under the control of Russia, so I think she speaks Russian. The word sounds like Koo-duh-vuh. How do you spell it? Kudava? Coudavah? Cuduva?