the religious belief that Green Day is the absolute greatest band ever.
I'm a member of the Greenist Church, aka the Church of Green Day.
by AD9 March 27, 2004
2 more definitions
The religion of green and its greatness
"I have to go to my Greenism service on Sundays."
by Chelsea February 08, 2004
when you hate all jews or gays or terrorists. when you are a real patriot of the USA.
jew = gay = terrorist
by Cole Glass May 04, 2005