The old phrases that make you sound like you truly belong
Some of the most colourful expressions in any language are the ones that have been slowly retreating from everyday use for a generation or two - kept alive in the speech of grandparents, in old films, in traditional songs. When you know one of these phrases and use it at the right moment, the reaction from a native speaker is always the same: a pause, then a laugh, then "Where did you learn that?" Koji ti je andrak? is exactly that kind of phrase.
What does "Koji ti je andrak?" mean?
The phrase means, roughly, "What on earth is wrong with you?" or "What has gotten into you?" - directed at someone who is behaving oddly, grumpily, or unreasonably. It is a colourful, slightly cheeky expression - not a serious insult, but a pointed one. You would use it with someone you know well: a friend who is in a strange mood, a sibling who is being unnecessarily difficult, a colleague who has done something baffling. Think of it as the Serbian equivalent of a raised eyebrow plus "what is your problem, exactly?" - but delivered with a grin rather than real hostility.
The phrase is less common in contemporary urban speech than it was a few decades ago, but you will still hear it from older speakers and in rural areas, and you will encounter it in classic Serbian films and literature of the 20th century.
What is an "andrak"?
Andrak is a playful or archaic name for a devil, a mischief-maker, or a scoundrel - a minor supernatural troublemaker rather than anything truly frightening. The word comes from old Slavic folk vocabulary and carries a folksy, almost affectionate tone. When you say Koji ti je andrak?, you are literally asking "Which devil is (in) you?" - implying that some small mischievous spirit must be responsible for the person's peculiar behaviour. The implication is that the person themselves is not entirely to blame; it is the andrak's fault. There is something both accusatory and forgiving in that framing, which is perhaps why the phrase survived as long as it did.
You may also occasionally hear the variant Koji te andrak nosi? (literally, "Which devil is carrying you?") - meaning much the same thing, perhaps with a slight emphasis on restlessness or erratic movement.
Why old phrases still matter to a language learner
It might seem like a luxury to learn expressions that are partially out of fashion. But there are at least two very good reasons to collect them. First, you will encounter them - in conversation with older speakers, in films, in books, in songs - and recognising them means understanding the full picture rather than a gap. Second, and more importantly, using one correctly in the right moment marks you as someone who has gone beyond the textbook. Native speakers are genuinely surprised and delighted when a learner produces a phrase like Koji ti je andrak?. It signals that you have been listening to real Serbian, not just studying it. That signal matters for building real connections.
How to try it
Use this phrase lightly and only with someone you know well enough to tease. If a friend arrives to meet you in an inexplicably bad mood, or does something silly, a gentle "Koji ti je andrak, bre?" (the bre is an informal particle that softens and personalises the phrase a little) will usually produce a smile. It is not appropriate for formal situations, for strangers, or for anyone who might take it as a genuine criticism - the tone matters as much as the words.
If you prefer to practise it safely first, say it to yourself when you drop your keys or spill your coffee. Turns out it works very well as a mild self-directed exclamation too.
Frequently asked questions
Is "andrak" still used on its own as a word?
Rarely in modern standard Serbian, but you will find it in regional dialects, in old proverbs, and in the phrase discussed here. It belongs to the same folk-vocabulary family as words like davo (a folk word for devil, also seen in phrases like Koji te davo nosi?) and vrag (another word for devil, more literary).
Is this phrase rude?
It is informal and pointed - not something you would say to a boss or a stranger - but among friends it is more humorous than offensive. Context and tone do all the work. Said with a smile and a shrug, it is playful; said in genuine anger, it would land differently. Know your audience.
Are there similar phrases in Serbian?
Yes - Koji te vrag nosi? (What devil is carrying you? - meaning what brings you here unexpectedly, or what on earth are you doing?) and Koji ti je problem? (What is your problem? - more blunt and modern) cover similar ground. Šta ti je? is the simplest and most neutral equivalent: "What is wrong with you?" or just "What is the matter?"
Where can I hear this phrase used naturally?
Look for Serbian films from the 1960s through the 1980s - comedies in particular. Directors like Dusan Kovacevic wrote dialogue full of exactly this kind of folk expression. Old episodes of Serbian television serials are also a wonderful source.
I love sharing these old phrases because they remind me that language is not only grammar and vocabulary - it is also the accumulated wit and warmth of generations. If you know any similar expressions, or if an older Serbian speaker in your life uses something equally wonderful that you have always wondered about, please share it in the comments. I would genuinely love to hear it.
Sve najlepse! - Marina Petrovic
More phrases to sound human: browse the Serbian Phrases category.