kobajagi

1. colloq. supposedly; pretending; as if
   Kobajagi je bolestan, a ceo dan igra igrice. — He's supposedly sick, but he plays games all day.
   Prošla je pored mene kobajagi slučajno. — She walked past me as if by accident.

It often comes before a verb or adverb to stress pretence: kobajagi ne zna.