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1.
The ruling allowing men to watch films and/or television shows that would normally be defined 'girly' IF the show contains an extremely hot female lead

Named after Zoey Deschanel, specifically the show 'New Girl', which is acceptable to be watched by men under the Deschanel Ruling
Ryan: Is that New Girl you've got on? Mate, that's for women!
Matt: I call the Deschanel Ruling, she is so hot!

Brett: Fancy watching a film?
Ash: How about John Tucker Must Die? Deschanel Ruling cos I would definitely tap Brittany Snow
by Master Procrastinator February 10, 2013