Top definition
a new religion, that requires you to always be naked, all day e'er day.

A person who follows the religion on nudianityism is called a nudiast
Bob: do you believe in Jesus?

Ryan: NO dude, I'm a nudiast

Bob: what is that?

Ryan: It is a follower of the religion nudianityism
by raychulday December 26, 2010
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