Oh Right, My Muscles! - Stray Kids

What happened

Stray Kids' Changbin and Seungmin joke about his muscles, quoting South Park's "Oh my god, they killed Kenny" line. The Stray Kids channel posted the clip titled "아 맞다 내 근육!" (a matda nae geunyuk, "oh right, my muscles!") with hashtags promoting the group's "THIS & THAT" album and its "YouMakeStrayKidsStay" campaign.

Why Koreans care

The title's "아 맞다" (a matda, "oh right" / "I just remembered") is an everyday Korean interjection for suddenly recalling something you'd forgotten. Framing "내 근육" (nae geunyuk, "my muscles") as something Changbin had "forgotten" and now "remembers" is a small self-deprecating joke built on that stock conversational phrase, not a literal claim — a format a foreign viewer unfamiliar with the expression would likely miss.

In the Korean comments

Majority: several commenters simply find the moment endearing rather than reading anything into it, as in one top comment: "이게 뭐람…ㅋㅋㅋㅋㅋ개귀여워ㅠ" (roughly, "What even is this... lol, so cute"). Fandom: other comments pair praise with a reflexive reminder to ignore hate, a recurring pattern in idol-fan comment sections regardless of whether any specific criticism is visible in the clip itself: "승민이랑 창빈아, 항상 행복하고 악플은 무시해. 너희가 최고의 가수라는 걸 잊지 마" (roughly, "Seungmin, Changbin, always be happy and ignore the hate comments. Don't forget you're the best singers").

What the words mean

A foreign viewer might read the "ignore the hate comments" line and assume this cute clip provoked some specific backlash. In Korean fandom culture, telling idols to "악플은 무시해" (akpeul-eun musihae, "ignore the malicious comments") is a stock reassurance fans attach to almost any idol post, regardless of whether real criticism exists anywhere near it.