What “군침이 싹 돈다 (gunchimi ssak donda)” really means.
There's a very specific phrase for what your mouth does right before something good.
군침이 싹 돈다 (gunchimi ssak donda) breaks into three pieces: 군침 — the idle saliva that shows up when you're anticipating food — plus 싹, "all at once, completely," plus 돈다, "circulates." Put together, it's uncomfortably literal: the drool has completely started circulating.
Food is the obvious trigger. But the phrase isn't actually about saliva — it's about anything that just became irresistible: a huge discount, a hyped trailer, an opportunity too good to let pass.
The literal use — actual food
This is where the phrase lives most naturally: something smells too good to ignore.
WALKING PAST A STREET FOOD STALL
친구: 저기 닭강정 냄새 진짜 좋다.
chingu: jeogi dakgangjeong naemsae jinjja jota.
나: 나도, 군침이 싹 도네.
na: nado, gunchimi ssak done.
“That fried chicken smells so good.” — “Same — my mouth is watering already.”
When money is the bait
Swap the food for a deal too good to pass up, and the same reflex kicks in.
HEARING ABOUT A HUGE SALE
친구: 그 브랜드 이번 주말에 반값 세일한대.
chingu: geu beuraendeu ibeon jumare bangap seilhandae.
나: 뭐? 군침이 싹 도는데.
na: mwo? gunchimi ssak doneunde.
“That brand's having a half-price sale this weekend.” — “What? Now that's tempting.”
When it's pure hype
It stretches even further — to something you haven't experienced yet, only glimpsed.
SEEING A HYPED DRAMA'S TEASER TRAILER
친구: 이번 신작 드라마 예고편 봤어? 캐스팅이 미쳤어.
chingu: ibeon sinjak deurama yegopyeon bwasseo? kaeseutingi michyeosseo.
나: 봤어! 예고편만 보고도 군침이 싹 돌더라.
na: bwasseo! yegopyeonman bogodo gunchimi ssak doldeora.
“Did you see the teaser for that new drama? The casting is insane.” — “I did! Just from the teaser, I was already hooked.”
So the next time someone says their mouth is watering over a sale or a trailer, don't picture literal drool. Picture the one reflex Korean decided was universal enough to describe every kind of “I want that, now.”