iskočiti

1. (iz + gen.) to jump out; to leap out
   Mačka je iskočila iz kutije. — The cat jumped out of the box.
   Iskočio je kroz prozor i pobegao. — He jumped out of the window and ran away.
2. to pop up; to appear suddenly
   Pas mi je iskočio pred auto niotkuda. — A dog jumped out in front of my car out of nowhere.
   Na ekranu je iskočila neka poruka. — Some message popped up on the screen.
3. (of a train, iz šina) to derail; to go off the rails
   Teretni voz je iskočio iz šina kod Niša. — A freight train derailed near Niš.
4. colloq. (of a joint) to be dislocated; to pop out
   Na treningu mu je iskočilo rame. — He dislocated his shoulder at practice.

The imperfective is iskakati. Movement out of something takes iz + gen. (iskočiti iz kutije), movement off a surface takes s/sa + gen. (iskočiti sa balkona).