Onni Onni 🥰

In the Korean comments

The top comment on this video is not about the video. It asks viewers to stream RESCENE's 런어웨이 (Runaway) before the group's comeback on November 3. In translation, it argues that the MMA (a year-end music awards show) counts a "song of the year", that RESCENE's older song 러브어택 (Love Attack) only rose in the charts two years after release, so it "isn't reflected", and that the remake 프리티걸 (Pretty Girl) also isn't counted. Its conclusion is that Runaway, as this year's song, is the one to push. These are the commenter's own claims about the award rules, and nothing in the supplied material confirms them. Several other comments use nicknames for ZENA. One reads, in translation, "Ggaeong-i, who's been in great form lately, Jena." Here 까엉이 (ggaeong-i) is an affectionate name for her. It appears in a few comments, including one that says "까엉아 언니 왓다" (ggaeong-a, unni watda), roughly "Ggaeong, your unni is here." A few comments call her a trot singer. One says, in translation, "our trot queen", and another says "트로트가수 까엉이" (teuroteu gasu ggaeong-i, trot singer Ggaeong-i). The supplied material does not say why they call her that. One comment says "와 신라공주님 미모가..." (wa Silla gongju-nim mimoga...), in translation "Wow, Silla princess, that beauty...". Silla was an ancient Korean kingdom, and the comment uses a princess of that kingdom as a way to praise her looks.

What the words mean

The title 온니온니 (onni onni) is a cute, exaggerated spelling of 언니 (eonni, or unni). Literally, 언니 (unni, older sister or close older woman) is what a woman calls an older sister. It is also the usual term a woman uses for an older woman she is close to. The 온 (on, cute internet spelling of unni) spelling is an affectionate, playful internet style, and the repetition adds to the cuteness. The title is not a foreign word, and the emoji after it is part of the same affectionate tone. One comment shows the word at work: "언니란 말한마디에 속절없이 메타몽 얼굴이 되는 나…" (unniran mal hanmadie sokjeoreopsi metamong eolguri doeneun na). In translation: "Helplessly turning into a Ditto face at the single word 'unni'." 메타몽 (Metamong) is the Korean name of the Pokémon Ditto, whose face is a blank, melting smile. The commenter is saying that hearing "unni" leaves them helplessly and happily slack-faced. The supplied material does not say who says the word in the video.