Also, judging by the other definitions posted on here, they are people that come under a lot of flak from believers.
Its the atheist's choice really.
PS: To the Christians, we tend to comment on you the most because you tend to attack the most. I have yet to run into a Buddhist monk ranting about how I'm going to suffer for all eternity for not being Buddhist.
Someone more tolerant of others: Oh, I see. You're religious. I'm atheist.
opposite of theist.
atheist: dumbshit. *rolls eyes and strolls away*