장난해? — The Line That Comes Out When Disbelief and Anger Hit at the Same Time
장난해?
장난해? (jangnanhae?) literally asks, “Are you playing around right now?” — but in real life it’s what bursts out in casual speech (반말, banmal) when someone’s words or actions are simply unbelievable: “Is this for real?” — disbelief and anger going off at once. The closest English is “Are you kidding me?”
The situations that pull this line out of people are pretty predictable. A 30,000-won delivery order arrives with half the broth spilled. The friend you’ve waited an hour for finally picks up the phone and says, “Oh right, that was today?” It’s six o’clock on a Friday evening and you’re told the report is due Monday morning. They all share one thing — the feeling that the other person didn’t take you seriously. When that feeling rises all the way up to your throat, out comes “장난해?”
There are three things Korean learners most often miss about this expression.
First, it isn’t a question. There’s a question mark, but no answer is wanted. Reply earnestly with “아니, 장난 아니야 (ani, jangnan aniya)” — “No, I’m not joking” — and you’ve poured oil on the fire. The form is interrogative; the function is protest.
Second, it’s 반말 (banmal), casual speech. And very hot casual speech at that. Between close friends you might toss it out with a laugh, but use it with anyone you have even a little distance from and it becomes a fight on the spot.
Third, adding 지금 in front turns the temperature up another notch. 지금 장난해? (jigeum jangnanhae?) layers on “of all times, in this situation” and pushes the other person into a corner. When a character in a drama slams a palm on the desk, this is usually the version they use.
It helps to learn the variations too. 장난하냐? (jangnanhanya?), 장난하니? (jangnanhani?), 장난하는 거야? (jangnanhaneun geoya?), and 장난치냐? (jangnanchinya?) are all interchangeable in the same slot, softening slightly as you go down the list. In the other direction, 장난하지 마 (jangnanhaji ma) — emotion pressed down rather than let out — is closer to “Stop it, be serious.”
A Real Conversation
Setting: Saturday afternoon, in front of an apartment building’s main gate. Jun-kyung has just picked up a bike he bought secondhand.
Jun-kyung: 봐 봐, 이거 십오만 원에 건졌어. 사진이랑 똑같지? Look at this — I got it for 150,000 won. Just like the photo, right?
Emily: 준경아… 뒷바퀴 좀 봐. 여기 다 녹슬었는데? Jun-kyung… look at the back wheel. It’s completely rusted here.
Jun-kyung: 어? 어어, 진짜네. 장난해? 사진엔 이런 거 하나도 없었어. Huh? Oh, you’re right. Are you kidding me? There was none of this in the photo.
Emily: 브레이크도 한번 잡아 봐. …야, 이거 아예 안 먹잖아. Try the brakes too. …Hey, these don’t grab at all.
Jun-kyung: (전화를 걸며) 여보세요, 아까 자전거 산 사람인데요. 브레이크가 아예 안 듣는데 지금 장난하세요? (dialing) Hello, I’m the one who just bought the bike. The brakes don’t work at all — are you messing with me?
Emily: 그래, 그렇게 말해야지. 나 옆에서 녹슨 데 사진 찍어 놓을게. Yeah, that’s how you say it. I’ll take photos of the rust over here.
Where It Sounds Off
✗ (to your manager) 부장님, 이 일정 장난하세요? (Bujangnim, i iljeong jangnanhaseyo?) ✓ (to your manager) 부장님, 이 일정은 현실적으로 맞추기 어렵습니다. (Bujangnim, i iljeongeun hyeonsiljeogeuro matchugi eoryeopseumnida.) — Sir, realistically this schedule will be hard to meet. → Attaching a polite ending doesn’t make “장난하세요?” polite. Only the outer layer is honorific; the content is still the protest “Are you making a fool of me right now?” Aimed at a superior, it isn’t a matter of manners — it’s an incident.
✗ (to a stranger after getting your foot stepped on in the subway) 저기요, 지금 장난해요? (Jeogiyo, jigeum jangnanhaeyo?) ✓ (to a stranger after getting your foot stepped on in the subway) 저기요, 발 밟으셨어요. (Jeogiyo, bal balbeusyeosseoyo.) — Excuse me, you stepped on my foot. → Between strangers, this line doesn’t extract an apology; it opens a fight. In Korea, friction with strangers ends far faster if you just state the fact, briefly.
Example Sentences by Situation
1) To a friend who has postponed plans for the third time
야, 이번이 세 번째야. 지금 장난해? (Ya, ibeoni se beonjjaeya. Jigeum jangnanhae?)
Once is circumstances, twice is a mistake, three times is an attitude. In Korean, nailing down the count first and then closing with “지금 장난해?” reads less like losing your temper and more like a declaration: “I’m done letting this slide.” What the other person owes you after this isn’t an excuse — it’s an apology.
2) Ten minutes before quitting time, between coworkers in the hallway
월요일 아침까지 달래. 장난하는 거지? (Woryoil achimkkaji dallae. Jangnanhaneun geoji?)
Here “장난하는 거지?” isn’t said to the boss — it’s said to a coworker in the same boat. Half of this expression is protest; the other half is checking that someone’s on your side: “You think this is ridiculous too, right?” In a Korean company, this line gets traded not in the meeting room but in the hallway, the smoking area, or in front of the elevator.
3) At a service center, on hearing the repair estimate
수리비가 삼십만 원이요? 지금 장난하세요? (Suribiga samsimman wonieyo? Jigeum jangnanhaseyo?)
When the repair cost is about the same as buying new — that is, when the other party is an institution or business rather than an individual — people do use this line in its honorific form. It’s off-limits with someone senior to you, but in a complaint over a contract or money it reads as a signal that “this doesn’t add up.” Just know that the moment you say it, the conversation stops being a negotiation and becomes a standoff.
Polite vs. Casual, and Similar Expressions
| Expression | Temperature / intensity | Where it’s used |
|---|---|---|
| 장난해? / 지금 장난해? | Hot. Anger + disbelief | Casual speech between friends and coworkers. Not with superiors |
| 장난하세요? / 장난해요? | Polite on the outside, protest inside | Complaints to businesses, customer service |
| 농담이지? (nongdamiji?) | Lukewarm. Checking + hoping | Friends. Not angry yet |
| 말도 안 돼 (maldo an dwae) | Mostly surprise | Anywhere. Used for good news too |
| 진심이야? (jinsimiya?) | Calm. Checking sincerity | Anywhere. Puzzlement more than anger |
| 실화냐? (silhwanya?) | Light and excitable | Peers, the internet. Not with superiors |
Even for the same situation, there’s an order. You start by checking with 진심이야?; when it still makes no sense you react with 말도 안 돼; and once you’ve concluded that the other person made light of you, that’s when 장난해? comes out. This expression sits at the last stage of the emotional sequence, not the first.
One more thing. 장난 아니야 (jangnan aniya) looks similar but means something completely different. “저 집 떡볶이 장난 아니야” doesn’t mean “I’m not joking” — it’s praise: “that’s amazing, that’s incredible.” It attaches to negative situations too: “어제 비 장난 아니었어” means “it rained like crazy yesterday.” It’s negative in form but an intensifier in practice — be sure to keep the two apart.
Cultural Background — From 작란 (作亂)
‘장난’ is generally thought to come from the Sino-Korean word 작란 (作亂), meaning “to stir up chaos.” The sound wore down into ‘장난,’ and the meaning drifted from ‘chaos’ toward ‘the mischievous play children get up to.’ So today ‘장난’ is mostly a cute word — but the moment someone snaps “장난해?”, the shadow of the old meaning comes back to life. In the end, this line is an accusation: “Are you stirring something up right now?”
In Korean dramas, this line always lands in similar places. A character handed a contract, checking the terms. Something long in preparation overturned by one word from above. Discovering the other face of someone you trusted. Actors usually don’t shout it. They swallow a breath and let out a short, low “…장난해?” Because the acting choice is to lower the temperature instead of raising the volume, these three syllables work in Korean dramas like a signal marking the point where a relationship breaks.
It’s the same in daily life. This line isn’t used on just anyone. Even when they’re genuinely angry, if the other person is senior or at any distance, Koreans swallow this expression and reroute to something like “그건 좀 아닌 것 같은데요 (geugeon jom anin geot gatteundeyo)” — “I don’t think that’s quite right.” Flip that around and it means: if someone says “장난해?” to you, that person regards you as someone they can speak freely with. An angry line that is at the same time proof of closeness — that double nature is the most Korean thing about this expression.
Today’s Quiz
You work at a Korean company. On Friday evening, your manager asks for a report by Monday morning. The schedule is flatly impossible and you’re dumbfounded. What can you say to your manager?
- 부장님, 지금 장난하세요? (Bujangnim, jigeum jangnanhaseyo?)
- 부장님, 이 일정은 현실적으로 어려울 것 같습니다. 화요일까지는 가능합니다. (Bujangnim, i iljeongeun hyeonsiljeogeuro eoryeoul geot gatseumnida. Hwayoilkkajineun ganeunghamnida.)
- 부장님, 장난하는 거 아니시죠? (Bujangnim, jangnanhaneun geo anisijyo?)
Answer: 2
Options 1 and 3 carry polite endings, but the content is still the protest “Are you making a fool of me right now?” — used with a superior, that goes past rudeness into an incident. Keep 장난해? (jangnanhae?) inside your head, and out loud give both the reason it can’t be done and a workable alternative; that’s what works in a Korean workplace. The place this expression really belongs is after that conversation, in the hallway, when you run into a coworker and say, “월요일 아침까지래. 장난하는 거지?”