Someone who listens to only mainstream, radio songs. This person has no individuality in music and goes with the flow of mainstream popularity. They have a very linear range of songs, often having very few or little songs.
1. "She's so lame, such a radio kid. All she does is listen to Chris Brown"
2."He's such a radio kid, he only listens to mainstream, and radio music."
3.Teenagers who like to only listen to the hottest hits on radio and think that its the best music out there.
4. People who play radio songs very loudly on transportation, thinking its cool
5.Teenagers who bag other genres because its 'indie' or not known.