A follower of L. Ron Hubbard and the "Church" of Scientology.

The term is a play on "Cylons," the robotic invaders in Battlestar Galactica. It is particularly appropriate because Hubbard was a science fiction writer, and the top-seekrit "OT levels" are based on the belief that we are infected with "body thetans," the confused, immortal souls of space aliens who became disoriented 75,000,000 years ago when the evil space warlord Xenu brought them to Earth (or Teegeeack, as it was known then), dropped them into volcanoes and blew them up with nuclear weapons.
"The Scilons tried to talk me into taking a Free Personality Test."
by SpaceCootie June 13, 2008

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Top Definition
A person who sympathizes or is directly involved with the Church of Scientology.

Used in a derogatory manner by Anonymous and those opposed to the practices of the Church of Scientology.
"Hey scilon, how much are they paying you to write this biased garbage? $70 a week?"
by TheAnonymous March 15, 2008

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A person who sympathizes with or is directly involved with the Church of Scientology.

Used in a derogatory manner by Anonymous and those opposed to the practices of the Church of Scientology.
"Hey scilon, how much are they paying you to write this biased garbage? $70 an hour?"
by TheAnonymous March 15, 2008

The Urban Dictionary Mug

Lotsa space for your liquids.

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Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt