The 게 in 누가 돌아왔게 is not the 게 you studied

On 8 June 2026 a creator called 팔리아치 posted a comedy sketch: a fake video call you can play for a taxi driver, starring a boyfriend who has just gotten out of prison. One line out of it became the most reusable sentence of the Korean summer: 감옥에서 누가 돌아왔게?, delivered at enormous volume with the last syllable dragged out (인스타공백닷컴).

By mid-July it had left the sketch behind. 르데스크 reported on 16 July that idols were using it in fansigns, 라이즈’s 원빈 answering a fan with 감옥에서 누가 돌아왔게, 검은 고양이가 돌아왔다 — and that the pattern had settled into a general-purpose way to announce that someone or something is back (르데스크, 16 July 2026). A marketing column on 10 August still put it at peak, with brand accounts from 멜론 to GS25 swapping the first word for a product launch (오픈애즈, 10 August 2026).

Here is the part worth your study time. That final 게 is not the 게 you studied, and it is not the 게 in 먹는 게 좋아 either. Korean has five of them, and this is the one that never makes it into a textbook chapter.

What does 게 mean at the end of 누가 돌아왔게?

It means “take a guess”. In 누가 돌아왔게? the 게 is a sentence-final ending — a 종결 어미 — attached to the past stem 돌아왔-, and it converts a plain question into an invitation to guess the answer. 표준국어대사전 defines this sense as an ending “used at the 해 level, expressing the meaning of having a guess and answering” (표준국어대사전, -게 9, sense 3). Its own example is 학교 다닐 때 내 별명이 뭐였게? — “guess what my nickname was at school”.

So 감옥에서 누가 돌아왔게? is not asking who came back. The speaker knows who came back. It is “guess who’s back”, with the answer supplied a beat later, which is exactly why the format took: the sentence has a hole in it and a built-in punchline slot.

The five 게s

Every one of these is a separate dictionary entry. They look identical on the page.

게	What it is	Example	Meaning
게 ← 것이	the noun 거 plus subject 이	매운 게 좋아?	do you like spicy ones?
-게	connective ending: purpose, result, manner, degree	사진 잘 나오게 여기 서 봐.	stand here so the photo comes out well
-(으)ㄹ게	해-level ending: promise or intention	내가 먼저 갈게.	I’ll go first
-게	해-level ending: question	누가 돌아왔게?	guess who’s back?
-게	하게-level ending: command	자네 이것 좀 보게.	take a look at this

The sources, in order: 거 is listed as the colloquial form of 것, and the dictionary states outright that it “changes shape to 게” when the subject marker 이 attaches (거 1); the connective is -게 8; the promise ending is -ㄹ게; the question ending is -게 9; the command is -게 10.

How to tell which 게 you are looking at

Do not go by meaning. Go by what sits on either side of it. Three checks, in this order, and they are decided by the dictionary’s own attachment rules rather than by feel.

Is there more sentence after it? Then it is the connective -게. 사진 잘 나오게 여기 서 봐 — the 게 clause exists to set up the clause after it. A sentence-final 게 has nothing following it but the question mark.

Is there a -았- or -었- in front of it? Then it can only be the question ending. This is the sharp one. 표준국어대사전 lists the connective -게 8 as attaching to a stem or to -으시-, and the 하게-level command -게 10 the same way. Only -게 9, the question, is listed as attaching after -었- as well. So 돌아왔게, 뭐였게, 만났게 have exactly one possible reading each.

Is the syllable before it a modifier ending — -는, -(으)ㄴ, -(으)ㄹ — on a verb or adjective? Then you are looking at 것이, not an ending at all. 매운 게, 먹는 게, 할 게. The -(으)ㄹ게 promise is the one trap here: 할게 written solid is “I’ll do it”, and 할 게 with a space is “the thing that I’ll do”. Korean orthography carries that difference in the space, and speech does not carry it at all.

There is a sixth thing 게 does that you have already met, and it is not a sixth entry: -게 되다 and -게 하다 are just the connective -게 with a verb bolted on. Worth knowing because it is common — in up103’s count of 24 released TOPIK listening papers, -게 되다 showed up in 11 of the 12 TOPIK II papers, 26 times in total.

The five things the question 게 does

The guessing sense is one of five listed under -게 9. They are worth seeing together, because four of them are invisible to a learner who only knows the connective. The Korean examples in this table are the dictionary’s own.

Sense	What the speaker is doing	Example	Reading
1	drawing an inference and checking it	그럼 얘가 수재게?	so this kid’s a prodigy, then?
2	asking rhetorically to deny something	그것을 알면 내가 천재게?	if I knew that, would I be a genius? (I don’t know it)
3	inviting a guess	학교 다닐 때 내 별명이 뭐였게?	guess what my nickname was at school
4	giving the grounds for the question just asked	장사가 잘됐나 봐? 표정이 밝으시게.	business went well? — you’re looking cheerful
5	asking after the listener’s intention	돈은 벌어 어디에 쓰게?	and what are you going to do with the money?

Sense 4 is the strangest of them to an English ear, because the 게 clause comes second and explains why the first question was asked at all. Sense 5 the dictionary glosses as close to -려고 그래?, and notes it usually carries a hint that the listener’s behavior is slightly unexpected to the speaker.

Guess, or intention?

Senses 3 and 5 are the two you will actually hear, and they are the pair that can be confused, because both are questions aimed at the listener. The split is not the question word — sense 5’s example has 어디 in it. The split is tense and whose action it is.

Guess (sense 3): past or 이다, and the speaker already knows the answer. 내가 오늘 누구 만났게? “Guess who I met today.” 이거 얼마였게? “Guess how much this cost.”
Intention (sense 5): plain present, and the verb is something the listener is about to do. 그거 다 혼자 먹게? “You’re going to eat all that by yourself?”

Compare the two forms of the same verb and the whole thing collapses into one contrast. 뭐 먹었게? is “guess what I ate”. 뭐 먹게? is “what are you planning to eat?”, with a raised eyebrow attached. One syllable of tense marking, two unrelated speech acts.

Can you actually say this?

Recognize all of it. Produce one part of it, carefully.

Every entry above except the connective is marked 해할 자리 or 하게할 자리 — that is, 해-level and 하게-level, both of them non-polite. The question 게 is 반말. It is fine with friends your age and with people clearly younger, and it is wrong with a stranger, a shop assistant, a colleague you are not close to, or anyone senior to you. 누가 돌아왔게? to your language exchange partner of two years is a joke. The same sentence to a professor is not.

Two more cautions. The 하게-level 보게 command is a different problem: the dictionary describes it as used to someone junior or on familiar terms, and it is not a level a learner needs to produce. Recognize it in dialogue and use 해요-level forms yourself.

And there is no polite version of the guessing 게 to reach for. 표준국어대사전 lists this ending only at the 해 level and gives no 해요-level counterpart, so I would not invent one. Rephrase instead, which Korean does comfortably: 제 별명이 뭐였는지 맞혀 보세요. “Try to guess what my nickname was.”

What to take from this

게 in 누가 돌아왔게? is a sentence-final ending meaning “take a guess”, not the connective 게 of 예쁘게.
Five separate entries share the shape: 것이 contracted, the connective, -(으)ㄹ게, the 해-level question, the 하게-level command.
Sort them by position, not meaning. More sentence after it, connective. -았/었- before it, question ending. Modifier ending before it, 것이.
The question ending has five senses; guessing and asking-your-intention are the two in daily use, and tense separates them.
All 반말. Recognize everywhere, produce only with friends, and rephrase when you need to be polite.

This is the same shape as the 꾸 in 다꾸 and 백꾸: one syllable that looks like a small piece of slang and turns out to be a system you can run on sentences nobody has said yet. The difference is that 꾸 keeps making new words, while 게 has been sitting in the dictionary the whole time with five entries, waiting for a meme to make anyone look it up.

The meme will pass. Sense 3 will still be there, and so will the other four, and you will meet them in dialogue long after nobody remembers the taxi sketch. That is the argument for meeting grammar in real sentences rather than in lists, which is roughly what how I improved my Korean listening is about. up103 builds comprehensive input practice out of your own study notes, and Founding Learners get 6 months free, then 50% off for life, at app.up103.com.

— 에드, up103