Brown Eyed Girls' member Narsha recently taught an elder couple a popular lingo word commonly used by the younger generation. During the recording of Invincible Youth, this charismatic singer was shown eating homemade rice and traditional korean soup (????) cooked by a old grandmother and grandfather. When Narsha couldn't think of a word to express the delicious taste, she announced a popular lingo word. The Brown Eyed Girls member told the grandmother and grandfather, "I'm not sure if you're familiar with this expression but there is a word commonly used by young people called 'Jjunda.' Have you heard of it?" Entertainer Song Eun Lee who was next to Narsha then explained, "Jjunda is a word used by young people to express something that is the best." To this, Narsha then asked, "Grandfather, how is the food?" to which the grandfather quickly answered, "Jjuluh!" showing his witty sense. Meanwhile, on this day G7 members spent their time in Jangsoo village and helped the elders with various farm work.