A punk-turned-pop band who produced two underground Punk albums in the late 80's, early 90's, then went on to bigger, more commercial things, (though they lost their indie status, still considered to be quality punk rock) until the release of American Idiot; known by any real fan of punk rock to be the most insultingly pathetic release to date. It picks up where Blink 182 left off in turning a genre (punk) of insanely warped guitar melodies and meaningful, thought-provoking lyrics into mushy love songs and half-assed, pretentious bitching, all to attract a new generation of 13 year old girls, (most likely moving on from the hip hop trend) seeing a Green Day vid on MTv and going to Hot Topic to buy some anarchy shoe laces, claiming to be Punks, when they know NOTHING about the genre or ACTUAL Punk rock. (They also tend to have very poor grammar, refer to themselves as bois and gurls. This is probably a clinging trend from the hip hop phase they were interested in last week.) And another thing; you're supposed to like a band because you like their music, not because you think the lead singer is how you bunch of Good Charlotte douche bags.
Here's my example: (a comparison)
Green Day - American Idiot (the song):
A brief, meaningless rant, picking up on the Hot Topic/MTv trend of saying you're a rebel, yet... Green Day is the only "punk" band you've ever even heard of. Also, proof that Billie Joe is lyrically retarded.
Bad Religion - any album/song ever produced: Bad Religion are a REAL punk band that has been making punk rock since the 70's, with the likes of Dead Kennedys, The Misfits, Rancid, and hundreds of other bands little Greenday pop-punks probably have never heard of.
Their music is not only political (it's one thing to say "Oh, I don't wanna' be an 'American Idiot'" "Oh, rednecks are stupid" "Down with Bush!" It's another thing to actually write meaningful lyrics about it that actually inspire intellectual thought, rather than MTv raves.
by TrippleZero July 12, 2005
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A day spent smoking marijuana.
Saturday was a green day.
by Anonymous September 18, 2003
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.
by Chernorizets Hrabr March 16, 2005
1. A day which is mainly spent smoking the drug marijuana, in an effort to end boredom. May have originated in California in the mid-80's.

2. A popular punk rock band with members from Rodeo and Willits, California.
1. I had a green day yesterday.

2. Mike Dirnt and Tre Cool are also members of Green Day.
by Crispy September 01, 2004
Quality band which poeple tend to see as sell outs because of their last album American idiot. For me they will always be remembered for Insmoniac and dookie two of the best punkish albums I have in my collection. Unfortunatly their main following now consists of teeny boppers who only discovered Green day existed when Boulevard of broken dreams came out and wouldn't know "At the library" from "Westbound sign" Still i suppose they had to find someone to fantasise over after Busted split up. DAMN YOU CHARLIE!!
girl 1: "wow have you heard that new band Green day?"
girl 2: "Yeah, billie joe is gorgeous"
me: "For gods sake! they have been around for 15 odd years!"
girl 3: "really? wow do you reckon Nirvana will ever get back together? that would be qualtiy"
me: *sound of me crying on the floor in utter despair*
by Guvnor P June 27, 2005
1) A day to smoke weed.

2) Popular American pop-punk band with such classics as Good Riddance (Time of Your Life), Basket Case and Longview. Sometimes said to be inspiration for various later pop-punk bands.
1) It was a green day.
2) I am going to the Green Day concert next week.
by jazzpup February 04, 2005
1) An awesome rock band lead by singer Billie Joe Armstrong that has many hits like When I Come Around, Welcome to Paradise, Basket Case, She, Brain Stew, Time Of Your Life, Warning, Minority, and Don't Wanna Fall In Love
2) A day when you just sit around and do nothing but smoke weed
1) Man, right now I'm listening to a Green Day CD and the songs are awesome!
2) That stoner's has 1 too many green days. He's trippin, man!
by 000 March 22, 2004
Californian punk rock band. Includes Billie Joe Armstrong, Tre Cool, and Mike Dirnt. They formed together in 88 and released their first album in 1991. They became famous for thei album Dookie in 1994, but really hit hard with their 1997 single Time of your Life from their album Nimrod. Also, the GREATEST BAND EVER!
"Green Day rocks!!"
"Dude, I TOTALLY agree!"
by Fini August 08, 2004
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