- Ascended Meme:
- "Thanks Pete" became such a popular meme after its appearance at the APMAs that the band created a shirt for it and now sell it in their store.
- It appeared again in a video advertising their M A N I A fidget spinners, several years after the original meme first popped up.
- Approval of God:
- When the band decided to riff on *NSYNC's "It's Gonna Be Me" video for "Irresistible", not only did they get Wayne Isham, who directed the original, they also got Chris Kirkpatrick and Joey Fatone themselves to appear in the video. (Lance Bass later tweeted that he too thought it was hilarious.)
- Uma Thurman approves off the song named after her.
- Magnum Opus Dissonance: Patrick had a lot of high hopes for Infinity on High, his role in the album was mainly a response to thinking that From Under The Cork Tree' wasn't entirely deserving of the Grammy nomination it got. He explains more about it in the liner notes for the Believers Never Die greatest hits compilation.
- Old Shame: Evening Out With Your Girlfriend, mainly due to the recording circumstances and the intent for it not to be released. Whenever the band discusses their history, Evening Out... almost never comes up. "Growing Up" was acknowledged on "What a Catch, Donnie" and it made an appearance on Believers Never Die, mainly due to it being the band's first song. The band disliked the record so much that years later, they paid to buy the record off Uprising to keep it from ever getting rereleased.
- The Pete Best: Drummer Mike Paresuwicz and guitarist T.K. Kunasch, who play on and appear on the cover of Evening Out With Your Girlfriend. Even more Pete Best-ier are several lesser known guitarists and drummers, that were in the band for even ''less' time than Paresuwicz and Kunasch, before Andy joined and Patrick took up playing rhythm guitar.
- Promoted Fanboy: As Chicago natives, they are long time fans of the Chicago Bulls. So the team asked them to create a new version their theme song, which they happily did in collaboration with fellow Chicagoan Lupe Fiasco.
- Screwed by the Lawyers: The version of "What a Catch, Donnie" that appears on Believers Never Die replaces Elvis Costello's cameo with Patrick's vocals as the record labels for Costello and the band couldn't reach an agreement in time for the album's release.
- So My Kids Can Watch: Part of why Fall Out Boy appears in the first part of the Teen Titans Go! special "The Night Begins to Shine" for Pete. (Doesn't hurt that he's friends with Tara Strong and Greg Cipes either.)
- Writer Revolt: A minor example. Their record company once asked them for shorter song titles, to which they responded by simply removing all the vowels from one title, producing "Thnks fr th Mmrs".
Trivia / Fall Out Boy