비정상투성이 (bijeongsangtuseongi) is a powerful compound word you won't find in a standard textbook. It combines 비정상 (bijeongsang), meaning 'abnormal', with the suffix -투성이 (-tuseongi), which means 'to be full of' or 'covered in' something.
This suffix often has a negative nuance, used for things like being covered in scars (상처투성이). In "MANIAC," Stray Kids reclaims this idea by calling themselves a 비정상투성이 집단 (a group full of abnormalities), proudly embracing the unique, 'crazy' identities that don't fit society's narrow definition of normal.
Ever felt exhausted from putting on a polite smile all day? That is the exact breaking point South Korean group Stray Kids attacks in MANIAC. The track opens by calling out everyone acting normal: "정상인 척 다들 힘 좀 빼" ('Stop pretending to be normal, loosen up'). They compare daily life to playing dress-up, saying people blink once and get ready for a "정상인 코스프레" ('ordinary person cosplay'). When people take your kindness for granted—"호의가 계속되면 권리인 줄 아네" ('when favors keep coming, they think it's a right')—it drives you crazy. The lyrics get delightfully blunt here, telling critics that even if they curse behind their backs, they will just practice "먹금" (meokgeum, an internet slang abbreviation for 'feeding no attention' or completely ignoring trolls).
Instead of bottling up that inner "freaky monster", the chorus blows the lid off. Stray Kids tells you to walk stiff like Frankenstein and laugh "나사 빠진 것처럼" ('like a screw came loose'). The English line "It ain't 'Live', It's 'Holding on'" lays out the real fight: faking sanity is just survival, not real living. By the end, they proudly embrace their inner oddball with "비정상투성이 집단 We're maniacs" ('A group full of abnormal people, we're maniacs'). It is a loud, chaotic permission slip to let your seams rip and show who you really are.