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1.
To be slick with your thinking and otherwise in most cases outsmart an opponate
U are sutch a Mind Ninja beacouse you beat me in craneium.
by Jessica Ashly Eslinger August 01, 2007
 
2.
To persuade/convince someone to do something as if they wanted to do it.
My father mind ninja me into choosing that movie
by New trends May 05, 2014