Similar to an
atheist, only a fatheist does not believe in fat chicks. Not even
thick chicks. This results in him being a poor
wingman, but reduces his odds of being crushed to death.
Guy A: Dude, I could totally nail this chick, you've gotta take her friend for me.
Guy B:
Man, I'd bite the
bullet and do it, but that's not a
bullet, that's a fking cannon ball.
Guy A: Please! I'm begging you.
Guy B: Sorry, no can do. I'm a fatheist.