kaka

1. colloq. (when talking to children) poo; poop
   Mama, beba je napravila kaku! — Mum, the baby did a poo!
   Pazi, ne staj u kaku na trotoaru. — Careful, don't step in the poop on the sidewalk.
2. colloq. (when talking to children) something dirty; yucky
   Ne diraj to, to je kaka! — Don't touch that, it's yucky!

A children's word; adults mostly use it when talking to children.