A punk-rock band. The four members of FOB are Patrick Stump (Lead Vocals and Rhythm), Pete Wentz(Bass and Vocals), Joe Trohman (Lead Guitar and Vocals), and Andy Hurley (Drums). Formed in 2001 and has made considerably good progress since then. They started in Chicago.
I'm going to see fall out boy this weekend in concert!!
by Ninjah Pineapple March 06, 2010
Fall Out Boy are a Pop-punk band favoured by teenage females and males who prefer soft rock and alternative rather to the harder type.They introduced a different yet controversial approach to soft rock in their from under the cork tree album. They are fairly talented, innovative and very contreversial. Their music is not emo(read the lyrics) and their lyrics are often hard to discern but when read are found to be of a very good quality, many of their USA fans are females for the reason that lotz of guyz in the us wont admit they like softrock, but in other countries they are widely accepted as a very talented bands by both genders, i am a male and i testify to that. As to those who belive u have to be a sissy or a poser emo to listen to fall out boy, you are sadly mistaken for many fall out fans such as myself h8 emos cuz their just shadows of the goths and if u met me ud certainly know im not a sissy but personally i can c the point of view of these people even though fall out boy are my fav bandm, 2 be able to have an unbiased point of view u should try listrening 2 all types of rock from metal to indie than u might realize how great they are. But all in all they're a gr8 band, though their first two albums are too soft the other 3 are a gr8 band with unique style and gr8 literary content
a horrible disease that millions of teenage americans suffer from.

the FOB virus is airborne, one is contaminated with this virus as soon as they hear any pop fall out boy song.

symptoms include include a significant change in sexuality and wardrobe such as : guys wearing mascara and eyeliner while wearing flourescent colored "Youth Small" sized DC shoes shirts, ripped up pants and having a weird haircut with bangs that cover half your face.
we must stop the Fall out boy virus with DEATH METAL, the antidote.
by tha truth teller March 27, 2007
One of the worst 'punk' bands that I have ever had the displeasure of seeing on every emo magazine cover in North America.
Fall Out Boy is shit.

Guy One: Man, Fall Out Boy is so hardcore punk.
Guy Two: Haha, you like Fall Out Boy, you emo poser punk.
Guy One: I'm going to go cut myself now.
by Generic To WIn November 21, 2005
A male or female asshole that has been penetrated so much by penis' and various other objects that when they sit down on the toilet the poop just falls right out.
Wow I hooked up with Sara last night and you could drop a baseball down that fall out boy of hers.
by DonSquigie January 02, 2011
A band that plays punk-rock music. They are often called fags because their bassist and lyricist , Pete Wentz, wears guyliner. Many people, mostly girls ages 14-18, believe that Pete Wentz is the hottest thing to hit the planet since pet rocks, although, without makeup, he is not particularly attractive. Their vocalist, composer, and backup singer is Patrick Stump, their guitarist is Joe Trohman, and their drummer is Andy Hurley. Thier first hit was Sugar, We're Going Down, shortly followed by Dance, Dance, and, most recently, Thnks Fr Th Mmrs. They are often called emo, which is partly true, depending on your definition of emo, because some of Fall Out Boy's songs contain suicidal themes and screamo. This band, for some reason that I cannot comprehend, inspires both extreme hatred and extreme idolization in great multitudes of people, who never actually pay attention to a band's music, only about their friends saying they are gay or talking about how hot Pete Wentz is. They forget to actually listen, or have their own opinion. Mine, however, is that Fall Out Boy is a good band. I like their music, and I believe that they have never changed their values to satisfy people they don't care about, is a huge acomplishment for anyone, celebrity or not.
Dude 1:"Wow, fall out boy sucks. Dance, dance is probably the worst song I've ever heard.

Girl 1: "I like it."

Dude 1: "Whatever"

by Ameera November 30, 2007
an American emo band that tons of teenage girls love; thought to be very underrated by them but in fact is very overrated. Also used to describe very long phrases from their song titles
oh, my life is too short to be a fall out boy song title
by gayprawnisosom March 28, 2015

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