"Ooh Ooh" is a song by Eric Nam, a South Korean singer-songwriter. The song is about falling deeply in love with someone unexpectedly. The lyrics express the singer's emotions and fascination with the person, describing them as a sweet rain on a dry heart. The singer is captivated by the person's every gesture and is drawn to their charm and presence. The song also emphasizes the importance of genuine connection and understanding in a relationship. It talks about how the singer wants to know more about the person and expresses their curiosity and desire to build a deeper connection. Overall, "Ooh Ooh" is a love song that portrays the overwhelming feeling of falling in love and the desire to get to know someone on a deeper level. The lyrics and melody convey the excitement and infatuation that comes with discovering a newfound love.