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Dumbass Atheist is a meme that, like Scumbag Atheist, makes fun of atheists. The meme typically uses the the "genius" meme as its template but is modified so the A symbol for atheism is on the forehead of the rage face. Knowyourmeme defines the "genius" meme as "a rage comic character and an expression used to marvel at someone’s stupidity. Because of its dubious use in criticism of others and self-deprecative humor, the character shares common grounds with other memes in the rage comic universe, particularly some of the more sarcastic ones like “You Don’t Say” and “Watch Out, We Got a Badass Over Here."

The other form of the Dumbass Atheist meme uses a template of a man (who is presumably gay) holding a piece of bread next to his mouth that is shaped like a cock. Dumbass Atheist differentiates from Scumbag Atheist by mocking the dumbass arguments of the atheist (hence the name) with the meme making fun of how atheists spew things out of context, create straw man arguments or use ad hominems.
Dumbass Atheist:

"I'm gay and The Bible says God hates gays so therefore he doesn't exist!"

"Bad things happened to me. God didn't stop that and therefore he doesn't exist!"

"One Christian was bad to me! Therefore they're all the same!"

"My prayers didn't work and therefore God doesn't exist and we all came from nothing!"

These common bullshit arguments ignore thousands of years of philosophy and logic and are emotional based rather than rational.
by Skialian January 04, 2014