answersLogoWhite

0

While they were playing a realitivaly small show, the band had been nameless up until then. A kid in the crowd shouted out "Fall Out Boy!" and the band liked it. So Pete, Joe, Andy and Patrick decided that it would work.

***Meloddic improves answer by stating....The band was nameless for their first two shows. They decided that the audience should decide, and at the end of their second show they asked the audience to yell out their ideas for a name. One audience member suggested "Fallout Boy",[6][8] a reference to the sidekick of the Radioactive Man from The Simpsons[5][9] (which the band performed the closing theme song for in the 2009 episode "Lisa the Drama Queen").***

(between the stars*** is) ~By Meloddic~

What else can I help you with?