gubica

1. (of an animal) snout; muzzle
   Pas je zabio gubicu u činiju. — The dog stuck its muzzle into the bowl.
2. vulg. derog. (of a person) trap; mouth
   Zatvori gubicu i slušaj! — Shut your trap and listen!
3. slang derog. (of a person) mug; face
   Ne mogu više da gledam njegovu gubicu. — I can't stand looking at his mug anymore.

Used of a person, the word is rude and insulting.