A person (usually a female between the ages of 9 and 15), who "likes" Green Day (spelt as "Greenday" by these creatures.) (see teenybopper), only since their successful album that they released in 2004, American Idiot. These people usually only know of Billie Joe Armstrong as THE member of "Greenday". The ways they spell Billie Joe's name are REDICULOUS!! Examples for the mis-spellings are: Billy Joe Armstrong, Billy Jo Armstrong, Billy Jo, and Billie Jo Armstrong. Sad, yes, I know. They do not know of Green Day's older, and somewhat better albums: 1,039/Smoothed Out Slappy Hours, Kerplunk, Dookie, Insomniac, Nimrod, and they MAY know ONE OR TWO songs from "Warning". They know of American Idiot as "Greenday's first album". And usually don't even listen to the best songs on there! They listen usually (ONLY) to tracks 1, 3, 4, and 11. (American Idiot, Holiday (probably because it fades into Boulevard of Broken Dreams, which most of these things call "Iwalk Alone"), and Wake me up When September Ends. Nope, not Letterbomb, not Homecomeing, not She's a Rebel, nothing else. They may also know 21 Guns and/or Know Your Enemy from 21st Century Breakdown. And if they don't listen to the music, (which most don't), they only focus on how "super haaaaaaaaaaaaawwwwwwwwwtttttttttttt!!!!!!!!!" Billie Joe is.
Teenybopper: 0h Th41 8177y Jo ArMsTrOnG iS, lYk, SoOoOoOo000, haaaaaaawwwwwwwwwwwttttttt!!!!!oneone1111111elevenone!!!!!!111eleven 1 w4nt 2 h4V oVeR 1234567890987654321234567890 oF hIZ BaYbEEeeeZZZZ!!!!!!11111111oneoneoneeleventyone1111!!!!! AnD H15 W1f3 c4n f477 1N 4 HoLE aND DyE!!!!!!!11111eleventyone111!!22

Normal (Real) Green Day fan: When did Green Day's first album come out?

Teeny: UuUuUuhhhhhhh... 2004!1!oneeleven DUh!!!!!!!!1111oneone111eleventyone1111~!~~!!!!!!!!!!

Real fan: Nope! 1989!

Teeny: Nu-uh! Am3R1C4N 1D01+ c4M3 0u+ 1N 2004!!!!!!!11111oneoneone111!!!~~~~eleventyone

Real fan: Goodbye you stupid American Idiot Fan.
by I-Hate-Teenies November 3, 2010
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Mostly made up people who believe Greenday is the best band in existance, when they've only listened to American Idiot and not their other, better records such as Nimrod. and 1039/Smoothed Out Slappy Hours. Usually cannot spell correctly ( I.E. Chatspeak. )and only discuss about how Billie Joe is 'amazingly hott' whilst they most likely do not even pay attention to the music.
"NOOOOOO...I LUV GREENDSAY BILLY JO IS S0o0o0o0o HAWTT!!!!!!!"

"Oh. So you're an American Idiot fan. -sharpens knife.-"

--

"Fans of Greenday usually have bad grammer. Oh, I get it. Greenday makes people dumb."
by Mrs. Self Destruct September 21, 2005
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