Mama, Pedja and Guza

I call my mom “mama” and I call my dad “Pedja”. I know that “dad” or “papa” or “tata” is much easier to say than “Pedja” but I like to say “Pedja”. On the other hand, my dad doesn’t call me Luka but instead he calls me “guzo” (which means “butt” in Serbian, and he calls my mom “mama”. And my mom calls my dad “tata” (which means “dad” in Serbian). We are screwed up.