A slang term for teenagers or young adults.
: Membangun komunikasi yang terbuka dan jujur dalam keluarga sangat penting. Orang tua harus aktif mendengarkan anak-anaknya dan memahami masalah yang mereka hadapi. abg masih polos diajarin nakal sama abangnya se
The phrase you mentioned is a common trope or title often found in adult-oriented web fiction or clickbait videos. It roughly translates to "an innocent teenager being taught 'naughty' things by their older brother/male figure." A slang term for teenagers or young adults