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1.
After watching a Rachel McAdams film you may find yourself in love with her.

You then rate other females, 1-10, not just on her looks, but her ability to love a man.

A McAdams 10 is a woman who is marriage material.
#1
Stewart: Who was that girl you were talking to?
Kevin: Oh, don't worry, McAdams 4.

#2
Kevin: That girl.... would marry out of 10?
Stewart: McAdams 9 mate.

#3
Kevin: She's a McAdams 10.
by SLS2 April 11, 2013