Green Day 

A decent band that earned the nick-name 'sell-outs' because their latest album, American Idiot, was popular.

Bruce: Gawd, Green Day is just a sell-out band. They aren't as good as they used to be.

Wayne: Why, because their album did well, and they gained a bunch of new fans?

Bruce: Well, the fans are a bunch of tweens that never listened to their old albums.

Wayne: Wow. I didn't know you had to like EVERY album and EVERY song they made in the past to be a fan of their current work. Dipshit.

Green Day by LadyHailey October 16, 2008

Green day 

1) A band that many people are starting not to like just because everyone else does, and they think it's "cool" not to go with the "fads". When in reality, the band is atleast 15 or 16 years old. Also, some people are stupid enough to think they're a new band.
But is a seriously good band, has always been great. People tend to split the group into "New Green day" and "Old Green day".

1) " Dude, I like Old Green day way better than New Green day"
2) "Ew, my best friend likes Green day, and like, no way, they're too mainstream"

Green day by Hannah_t September 5, 2005

green day 

A band that was once cool, until it became hugely popular and was invaded by MTV.

Prep: Lyk oh em gee Brittany I just heard of this band kalled like Orange Day..or was it Green Day? Yea I think it was Green Day but it realli should be kalled like pink day or somethin cuz thats like s0o0o0o much better but wut everrr. It's lyk s0o0o0o0o popular so we better listen to it lyk..now. Lyk okaaaay??!?

Real Green Day Fan: Shut up bitch I've been listening to Green Day since you were in diapers.

green day by seth_cohen_fan January 15, 2006

Green Day 

Green Day is a rock band that has been around since 1989. Their first cd dropped in 1990. The members are Billie Joe Armstrong, Mike Dirnt, and Tre Cool. I think they are a great band, but when their new cd "American Idiot" came out, a bunch of poseurs started to listen to them, without knowing or caring about what their lyrics mean or that they had been around before many of them were even born. Alot of true fans blame "American Idiot" for causing so many poseurs, but i think it's the media's fault. Green Day's new cd may be more pop-ish than their older stuff, but rock music itself has recently become very mainstream.

poseur- "Have you heard that new band, Green Day?"
me- "Dude, they had 8 other cd's before their new one!"
poseur- "Whatever, but that Holiday" song is so cool!"
me- "Do you even know who they're talking about?"
poseur- "No, TRL didn't say anything about that."

Green Day by wateva August 28, 2005

Green Day 

A sort-of punk rock band that was good but not extremely popular until recently, when thousands of teenyboppers found out about them on TRL, believing their newest and worst CD to date to be "teh bset". Now every fourteen year old in the country rants about how great Boulevard of Broken Dreams is and are known to exclaim things such as "OMG BILLY JOE IS HAWT!!!1" and "DONT WANNA BE AN AMERICAN IDIOT!!12". Their new CD is mediocre at best, so please listen to their other albums instead.

The typical Green Day "fan" has never heard of Nimrod or Kerplunk, but totally eats up the new pop-punk garbage.

Green Day by Chernorizets Hrabr March 16, 2005

green day 

A band from Oakland, CA. The band consists of three main members (Billie Joe, Mike and Tre). They have made 11 albums since 1990. People seem to think that they went mainstream w. "American Idiot", when in reality they went mainstream in oh... '94.

I'd like to state the fact that Green Day released "American Idiot" BEFORE Bush was re-relceted.

~~~`
-or a day spent wasted on pot

I went to a Green Day concert, yesterday. I wish they would have played "When I Come Around".

Dude, man, yesterday I was like soooo high... totaly green day.

green day by urbandictionaryinsistsiuseaname January 25, 2007

green day 

1) A most wonderful band in the opinion of many. They actually came from humble-to-hectic roots in California- all children of deadbeat parents, but all musically talented. Their usual music is literally exactly what an unhappy, confused, and possibly disgruntled teen goes through; subject matter ranges from sitting around being piss-drunk or stoned out of your mind to being afraid of love.

Now, sadly, it seems that this music has changed, as well as the Green Day image we all know and love. Since when have they swapped ratty old blazers and jeans for tight black pants and pyramid belts? We miss the old Green Day, even though their new music isn't too shabby.

2) A full 24 hours spent smoking marijuana.

1) Billie Joe Armstrong, Mike Dirnt, and Tre Cool are the 3 members of Green Day. Currently, they also have Jason White- backup guitar, as well as other various musicians who help them play. They're quite rad.

2) God, you're really fuckin' lazy! You've had two green days in the past month. Get a job or something, you sad-ass.

green day by ska-o-riffic! April 9, 2005