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1 definition by IainJMR

1. A band that is punk rock-ish and a band that some people think have sold-out. Alot of people think that everyone who is under 15 who likes them only know the albums American Idiot and 21st Century breakdown But this is not true.

2. A day dedicated to smoking weed.
1.Green Day's best album is Dookie.

2. Guy 1 : Dude, you are smoking loads of weed today.
Guy 2 : Yeah I know, its my Green Day.
by IainJMR March 11, 2011