I also nicked this from Urban Dictionary...
Christianity

A pyramid scheme based on a philosophy that was fairly progressive 2000 years ago. It has been rendered obsolete by modern scientific understanding largely due to its inability to resolve its inconsistencies through intelligently-applied critical thinking. It now serves as a means of deterring social and political advancement and as a tax on the gullible.

The christian-controlled majority in congress voted to withdraw federal funds to help support financially disadvantaged infants, reminding the public that the babies will go to heaven.
( Chum Gnomesky Nom Chompsky, Wed 25 Mar 2009, 23:39, Reply)