Top Definition
Someone who denies the existence of Facebook.
She likes to email. She's a Facebook atheist. She denies the hypebeast, which is awesome.
by Howling Dowling August 11, 2010
1 more definition
A person who fundamentally doesn't believe in Facebook.
I tried to get her to join up, but she won't - she's a facebookatheist.
by AH73 April 21, 2011

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