Fallout boy is radioactive man's sidekick, portrayed by millhouse and micky rooney. Fallout boy is toight, fallout boy
fallout boy~jiminy jillickers! lookout radioactive man the sun is exploding again!
by vester ..!.. August 30, 2007
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1. Radioactive Man's sidekick on "The Simpsons".
2. The wrong way to spell the name of the Chicago band, "Fall Out Boy". Usually mispelled by haters and posers.
Fallout boy is actually played by Milhouse!
by Puffin October 4, 2005
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Pretty much the gayest band ever. All they sing about is how their girlfriends dumped them or how life sucks. Also they lack musical talent. The lead singer can't keep a tune, his voice is that of a pubescent 12 year. I honestly think his voice cracked 98 times during dance dance. Also the instrumentals are horrible. Why, oh, why, do those losesrs buy expensive gibson sg's, fender p bass' and tama drums if alls they do is play some power chords layered with a beginners bass riff and a simple drum beat, then add the horrible vocals. Honestly, I could drag nails over a chalk board and sound better them.
Fallout boy is honestly the worst band ever, in my opinion, in 12 years everyone will forget about them and they'll be sitting in the streets of chicago begging for money.

Fallout boy fan: O my god you loser face!!! your just jealous cause your music hasnt been good since the 80's

No, but i do know music when i hear it, and fallout boy fits more in the category of a steaming pile of shit.
by 12345678901 July 27, 2006
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worst band ever. lead singer w/ extremly high pitched voice. if not for the guitar work, songs would be confused with those of Nsync or 98 degrees.
guy : fallout boy is fucking queer.
girl : shuuut upppp! fallout boy rox my sox!
gay guy: yea totally!
by aaron September 20, 2004
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A Bunch of emos you get together and bash strings.
One time me and my friends cut ourselves and made a band called fallout boy.
by T_box June 28, 2007
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A shitty excuse for a band: Their alternative style lacks in musical development. Their songs lack variety in rhythm, consisting mostly of sloppy thrashing power chords and smashing drums. They have absolutely no ability to pull of a decent live performance, and they lack improvisational skills completely. They can't jam, they can't compose intricate style with solos and whatnot, so FUCK THEM!, and all the similar punk-pussy bullshit out there.
BITCH: "Hey, have you heard the new fallout boy CD?"

DUDE: "No, why the fuck would you listen to that shit???"

BITCH:"Cause I'm a stupid narrow-minded bitch."

DUDE: "Good."
by DarkStar420 November 7, 2008
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a kick ass band straight outta chicago, with songs like: grand theft autumn, and dead on arrival.

(also a super hero on the simpsons)
by wouldnt you like to know December 30, 2004
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