List of the most commonly used slang words in Serbian

brate - brother (when addressing somebody)

ribe - girls (exact translation fish)
budala - fool

bekrija - drunkard

štreber - nerd

kuliraj - chill

nemoj smarati - don't bother me

šmeker - a confident, cool and popular guy that has/had a lot of girls

keva - mother

ćale - father, don't like it either

pljuga - another term for cigarettes

jok! - NO