Noun.

A phrase used to describe someone who is in the background secretly plotting and conspiring or also a hypocrite of great proportions.

Derived from the movie The Wizard of Oz
Senator Charles worked secretly at night with his other colleagues, being "the man behind the curtain" of the Senate.
by Roy Fenton October 11, 2006
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A term for referring to the shaft of a uncircumcised man.
The trick to having oral sex with an uncircumcised man is to find his Wizard of Oz—otherwise known as The Man Behind the Curtain.
by rc78 October 29, 2010
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