A know-it-all blowhard atheist who has managed to become as obnoxious as a Jehovah's Witness with their anti-evangelical mission to use big words like SCIENCE and LOGIC and REASON to prove whatever they say is true. (i.e. "You should have sex with me because I am Pro-Science, if you don't then you are a stupid religious bigot who believes in creationism and or molesting children!") Jehovah's Atheists usually don't come to your door but they are all over Facebook carefully reading your sentences, making sure there are no hidden theistic undertones, which would require they set you straight immediately. Because obviously, if you are not in complete agreement with Dawkins, Hitchens, and the 19-year-old dude on the Internet who makes atheist memes all day long, you are a bible-humping closeted Christian.
"Oh God, I accidentally said God in a colloquial context. Here come the Jehovahs Atheists to tell me why I should not believe in God. Oh crap, I said God again! Oh no, they're here! Hello...Yes...yes...okay...yes...hey look my new Jehovah's Atheist friend, I really have to go to work now....but....yes...yes...I know, I know about Bill Nye and Ken Ham...yes I know there is no heaven and hell and if there was that would make God really mean...yes...yes...okay, fine. Fine. Please, yes, give that YouTube link so I can educate myself. Can I go now?!"
by AttemptedRapture February 20, 2014
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An overweight small-endowed youtuber who inserts bananas into his own anus.
1. -Dude is that the amazing atheist?

-I Think so.

-Whoah that shit is bananas!

2. That atheist ain't so amazing. The evidence of God's creation is everywhere; in the air from which we breathe, in the bountiful nature from which we draw our sustenance, in the animals that give themselves up to our dominion, and, especially, in the banana that forms a perfect butt plug/ fruit smoothie enema.
by tyler88 November 2, 2011
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Atheistic existentialism, existential atheism, or atheist existentialism, is a type of existentialism that explicitly excludes any transcendental, metaphysical, or religious beliefs from philosophical existentialist thought. A person of this belief is most likely going to be a positive atheist. This type of existentialism overlaps with existential nihilism.
Atheistic Existentialism includes philosophers such as: Jean-Paul Sartre, Albert Camus, and Friedrich Nietzsche
by Kelmeer23 January 29, 2023
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Similar to porch dick, a porch atheist is a person who sits on their porch and yells at you just to let you know what's up.

The difference however, is that porch atheists try to educate you from their porch.
I got forcibly educated today by a porch atheist as I was walking home from church.
by Thememeshaha December 26, 2016
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A person who believes in God but lives as if He doesn't exist.
Aria says she believes God is real, but she goes out and parties and has sex with her boyfriend every weekend. She's such a Christian Atheist.
by IamKatieBear October 24, 2011
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a person who disbelieves or lacks belief in the existence of God or gods.
a person who believes everything in the bible is a philosophy
Joaquin De Leon is a satanic atheist because he believes everything the bible is a philosophy
by 965123456 February 11, 2020
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Atheist Fundamentalism is an oxymoron, because, fundamentalism implies a subscription to a belief set like a text book. One could be fundamental in a non-theistic philosophy, but, it is impossible to be an atheist fundamentalist.

However, in the context of it being used as an insult, it is used to denote atheists who are 100% certain that god does not exist (positive atheism) and hold anti-religious stances. This is the opposite of a religious fundamentalist who is 100% certain that god does exist and hold anti-atheist stances.
Atheist Fundamentalism is the polar opposite of religious fundamentalism because both regard their beliefs as being objectively correct while being just as intolerant as each other.
by Kelmeer23 March 17, 2023
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