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Korean Slang · casual

(sseom)

/s͈ʌm/noun

"Talking stage" or "casual flirting before dating" — the in-between phase when two people are interested but not officially together.

By Yijun Kim, Native Korean speaker and creator of Korean TokTokLast reviewed June 30, 2026
TL;DR · (sseom)
  • Meaning: "Talking stage" or "casual flirting before dating" — the in-between phase when two people are interested but not officially together.
  • Pronunciation: /s͈ʌm/ (sseom)
  • Part of speech: noun
  • Formality: Casual — for friends, family, and close peers.
  • Literal: something (loanword) — the "something is going on" stage

What does mean?

썸 (sseom) is Korean slang for the "talking stage" — the mutually-interested but not-officially-dating phase between two people. Borrowed from English "something," it names the flirty, will-they-won't-they limbo before a couple becomes 사귀다 ("officially dating").

썸 (sseom) is millennial-era Korean slang for the relationship stage between "interested" and "actually dating." Borrowed from English "something" (as in "something's going on"), 썸 names the texting-flirting-coffee-meeting phase before a couple becomes 사귀다 (sagwida, "to date officially"). The verb form 썸타다 (sseomtada, "to ride 썸") describes being in this stage. K-drama 2010s onward has made 썸 a defining word for modern Korean dating: the back-and-forth, the will-they-won't-they, the messages that hint without committing. Critical for AI conversations about modern Korean dating culture. The conversion phase: 썸 → 고백 (gobaek, confession) → 사귀다 (dating).

Literal meaning
something (loanword) — the "something is going on" stage
Origin
Loanword from English "something" via "썸씽" → shortened to 썸. Mainstream Korean dating slang since the early 2010s.

Examples in context

The verb 썸타다 ("to be in the talking stage")

썸 + 타다 ("to ride") = to be in a 썸.

우리 썸 타.
Uri sseom ta.
We're in the talking stage.
Describing your status
썸 탄 지 한 달 됐어.
Sseom tan ji han dal dwaesseo.
It's been a month of talking.
Noting duration
요즘 썸 타는 사람 있어.
Yojeum sseom taneun saram isseo.
I've got someone I'm talking to these days.
요즘 = "these days"

Gossiping with friends

너네 둘이 썸 타?
Neone duri sseom ta?
Are you two in a thing?
Teasing friends
걔랑 썸 타는 거 아니야?
Gyaerang sseom taneun geo aniya?
Aren't you two talking?
걔 = "that person"
둘이 썸 타는 거 다 알아.
Duri sseom taneun geo da ara.
Everyone knows you two are talking.
Calling it out

Nudging toward a confession

썸 → 고백 (confession) → 사귀다 (official dating).

썸만 타지 말고 고백해.
Sseomman taji malgo gobaekhae.
Don't just stay in the talking stage — confess.
A friendly push
언제까지 썸만 탈 거야?
Eonjekkaji sseomman tal geoya?
How long will you just keep talking?
An impatient friend
썸 끝내고 사귀어.
Sseom kkeutnaego sagwieo.
End the 썸 and date already.
사귀다 = to date officially

When it goes wrong

썸 타다가 깨졌어.
Sseom tadaga kkaejyeosseo.
The 썸 fell apart.
It didn't become a relationship
그냥 썸으로 끝났어.
Geunyang sseom-euro kkeutnasseo.
It just ended as a 썸.
Never made it official
썸만 타다 지쳤어.
Sseomman tada jichyeosseo.
I'm worn out from endless talking-stage.
지치다 = to be exhausted

Online / texting status

썸남이랑 카톡 중.
Sseomnam-irang katok jung.
Texting my 썸 guy on KakaoTalk.
썸남 = the guy you're talking to
썸녀한테 연락 왔어.
Sseomnyeo-hante yeollak wasseo.
My 썸 girl messaged me.
썸녀 = the girl you're talking to
썸 타는 중이라 설레.
Sseom taneun jung-ira seolle.
I'm in a 썸 so my heart's fluttering.
설레다 = to flutter

in K-pop & K-drama

The word that named modern Korean dating

썸 named a stage that always existed but never had a word: the mutually-interested, not-yet-official phase. Since the early 2010s it has become inescapable in Korean dating talk, variety shows, and song titles — the soundtrack-ready name for "will they, won't they."

"썸" the 2014 hit song

Soyou and Junggigo's 2014 duet "썸 (Some)" topped Korean charts and cemented the word in the mainstream. Its hook — "내 거인 듯 내 거 아닌 내 거 같은 너" ("you feel like mine but not mine") — is the perfect definition of the 썸 limbo.

썸남 / 썸녀 — naming the other person

Once 썸 caught on, Korean coined 썸남 (the guy you're in a 썸 with) and 썸녀 (the girl). Reality dating shows like Heart Signal (하트시그널) revolve entirely around tracking who is in a 썸 with whom — making the vocabulary part of everyday pop culture.

When to use

  • Describing modern dating "talking stage"
  • K-drama / K-vlog dating talk
  • Casual gossip with friends
  • Texting or social media bios about relationship status

When NOT to use

  • Established relationships — use 사귀다 (dating) or 연애 (romance)
  • Formal contexts — 썸 is millennial slang
  • Older speakers may not know it — context-dependent

vs. similar terms

Where 썸 sits in the Korean dating timeline

TermMeaningStage / intensityMutual or one-sidedTone
썸 (sseom)Talking stagePre-dating flirtingMutual but unconfirmedPlayful, ambiguous
짝사랑 (jjaksarang)One-sided loveUnconfessed longingOne-sidedBittersweet
사귀다 (sagwida)To date officiallyConfirmed relationshipMutual, declaredPlain, factual
연애 (yeonae)Dating / romanceAn ongoing relationshipMutualNeutral

Related terms

Cluster · Romance & fate

More in Romance & fate

K-drama romance lexicon — first loves, fated bonds, and "talking stage."

Frequently asked questions

What does 썸 mean in Korean dating?

썸 (sseom) is millennial Korean slang for the "talking stage" — the mutually-interested but not-officially-dating phase between two people. Borrowed from English "something" (as in "something's going on"). The verb 썸타다 means "to be in the talking stage."

What is the difference between 썸 and 사귀다?

썸 (sseom) is the unofficial pre-dating phase — flirty texts, coffee meetings, ambiguous status. 사귀다 (sagwida) means "to officially date" — the relationship has been declared. 썸 → 고백 (confession) → 사귀다 is the standard Korean dating timeline.

How long does 썸 usually last?

Variable. Some Korean couples 썸타다 for weeks, others for months. K-drama dramatizes the long, ambiguous 썸 phase as suspenseful. In real Korean dating, friends often nudge: "썸만 타지 말고 고백해" ("don't just stay in 썸 — confess already").

What is 썸남 and 썸녀?

썸남 (sseomnam) is the guy you're in a 썸 with, and 썸녀 (sseomnyeo) is the girl — formed from 썸 + 남(자)/녀(여자). They're the casual labels Koreans use for "the person I'm talking to" before a relationship becomes official.

How do you say you're in the talking stage in Korean?

Use the verb 썸타다: 우리 썸 타 ("we're in the talking stage") or 요즘 썸 타는 사람 있어 ("I've got someone I'm talking to these days"). To say it's gone on a while, 썸 탄 지 한 달 됐어 ("it's been a month of talking-stage").

How is 썸 pronounced?

썸 is pronounced [s͈ʌm] — "ssum" with a tense doubled S (sharper and shorter than English "sum"). Single syllable, light. The vowel is between English "uh" and "ah."

More Korean slang?

Browse the full Korean Slang Dictionary or read the deep-dive: Korean Slang Ultimate Guide.