NMIXX(엔믹스) “RudE TaLK” (Official Audio)

In the Korean comments

One comment reads, in translation, “From the fresh opening through the switch-up, the varied sound design is unbelievably compelling; it’s my favorite track on the album.” Another calls it the album’s most characteristically NMIXX song and singles out Jiwoo’s vocal tone and the rap—the opening-to-switch-up contrast is the detail to listen for.

What the words mean

느좋노래 (neujo-norae, a good-vibes song) compresses 느낌 좋은 노래 (neukkim joeun norae, “a song with a good feel”). It is casual internet shorthand for a track with an appealing atmosphere; here, the commenter reinforces that meaning by saying it sounds like something a café would play.