šogor

1. colloq. regional brother-in-law
   Moj šogor radi u Novom Sadu. — My brother-in-law works in Novi Sad.
   Za slavu dolaze sestra i šogor. — My sister and brother-in-law are coming for the slava.
2. colloq. regional (as a form of address) buddy; mate
   Šta ima, šogore, kako si? — What's up, buddy, how are you?

A general colloquial word, especially in Vojvodina; standard Serbian distinguishes zet, šurak, dever and pašenog.