본방사수 (bonbangsasu): Catch That Concert—and That Comeback Stage—LIVE!
If you’re a K-pop fan, you’ve probably circled a date on your calendar in red at least once. Your favorite group’s comeback stage, the first broadcast of a new song, the live announcement of a debut lineup… You can always rewatch these moments later, but for a fan, just being there in the moment together is so much more precious. And the word fans shout at times like these is today’s expression, 본방사수 (bonbangsasu).
본방사수
본방사수 (bonbangsasu) is a newly coined word made by combining two terms. 본방 (bonbang) is short for ‘본방송 (bonbangsong),’ meaning the ‘actual, first-run broadcast’—not a rerun or a replay—and 사수 (sasu) is originally a Sino-Korean word (死守) meaning ‘to defend at the risk of death.’ So a literal translation of 본방사수 (bonbangsasu) would be ‘to defend the live broadcast with your life.’ Of course, no one’s actually risking their life—it’s a fun exaggeration of the passion behind ‘no matter what happens, I’ll catch the live broadcast and make sure not to miss it.’
In English, it comes out to something like “to make sure to watch the live broadcast.” The key nuance is that it’s not simply ‘watching (watch),’ but an active determination to deliberately clear your schedule and put off other things just to make sure you catch it.
When do you use it?
Originally, drama fans used it a lot when they were keeping up with the weekly broadcast time of a show they loved, but these days you’ll hear it especially often in K-pop fandoms. Any content where being ‘live’ matters—a music-show comeback stage, a YouTube live, an online concert, an awards-show live broadcast—can all be a target of 본방사수 (bonbangsasu). Because the number of real-time viewers translates into buzz, which in turn affects the artist’s chart performance, for fans this is also a kind of ‘support activity.‘
Example sentences by situation
Situation 1 — Ahead of a comeback stage (to a friend)
Our kids are having their comeback today! It’s at 6 p.m., so we absolutely have to 본방사수. 오늘 우리 애들 컴백이야! 저녁 6시니까 무조건 본방사수 해야 해. (oneul uri aedeul keombaegiya! jeonyeok yeoseot sinikka mujokeon bonbangsasu haeya hae.)
‘우리 애들 (uri aedeul)‘—literally ‘our kids’—is an affectionate way fans refer to the group they love.
Situation 2 — Postponing plans (politely)
I’m so sorry, but could we push back our dinner plans a little today? There’s a stage I need to 본방사수. 죄송한데 오늘 저녁 약속은 조금 미뤄도 될까요? 제가 본방사수할 무대가 있어서요. (joesonghande oneul jeonyeok yaksogeun jogeum miryeodo doelkkayo? jega bonbangsasuhal mudaega isseoseoyo.)
Like this, you can add ‘-하다 (-hada)’ after 본방사수 (bonbangsasu) to use it like a verb.
Situation 3 — Expressing disappointment (to yourself)
Ugh, I failed at 본방사수 because of overtime… I’ll at least catch the replay. 아, 야근 때문에 본방사수 실패했다… 다시보기라도 봐야지. (a, yageun ttaemune bonbangsasu silpaehaetda… dasibogirado bwayaji.)
‘본방사수 실패 (bonbangsasu silpae),’ meaning you failed to watch it live, is a commonly used phrase.
Comparing formal/informal speech and similar expressions
본방사수 (bonbangsasu) itself is a noun, so it has no formal/informal distinction, but the tone is determined by the predicate that follows it.
- Informal: 본방사수 할래? (bonbangsasu hallae?) — between friends
- Formal: 본방사수 하실 거예요? (bonbangsasu hasil geoyeyo?) — in polite relationships
Similar expressions include 실시간 (silsigan, ‘to watch in real time’) and 본방 챙기다 (bonbang chaenggida, ‘to make sure to catch the first-run broadcast’). They lack the resolute feeling that the word ‘사수 (sasu)’ gives, so you could see them as a bit more low-key. On the flip side, watching something later instead of in real time is called 다시보기 (dasibogi, ‘replay’) or 정주행 (jeongjuhaeng, ‘binge-watching all at once’).
Cultural background
This sentiment shows up often in Korean dramas too. A scene of someone rushing to sit down in front of the TV right on time for their favorite program, or a character declaring “Nobody bother me during this hour”—these capture the 본방사수 (bonbangsasu) culture well. In K-pop, a layer of ‘support’ is added on top of this. Since watching live becomes a direct measure of buzz, for fans 본방사수 (bonbangsasu) is more than just viewing—it’s a small act of devotion for their favorite.
Closing quiz
A friend says, “Our kids are having their comeback today, but I have to work overtime so I can’t watch it live ㅠㅠ.” How would you describe this situation in a single phrase?
① 본방사수 성공 (bonbangsasu seonggong) ② 본방사수 실패 (bonbangsasu silpae) ③ 정주행 완료 (jeongjuhaeng wallyo)
(Answer: ② 본방사수 실패 (bonbangsasu silpae)—the phrase you use when you’ve missed the live broadcast!)