maher

1. colloq. expert; whiz; ace
   Moj komšija je maher za kompjutere. — My neighbour is a whiz with computers.
   Pitaj Marka, on je maher za takve stvari. — Ask Marko, he's an ace at things like that.
2. colloq. smart operator; clever, resourceful person
   Veliki si ti maher, uvek se izvučeš. — You're a real smart one, you always get away with it.

Often used with za + acc.: maher za nešto.