Fall Out Boy received their name at a concert. The band asked the audience for name suggestions and someone shouted out "Fall Out Boy." The original Fallout Boy is Radioactive Man's partner on The Simpsons. Most popular Fall Out Boy ringtones listed: Thnks Fr Th Mmrs, I Don't Care, Beat It (Feat. John Mayer), Dance Dance, Sugar We're Goin' Down, America's Suitehearts.