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Noun- someone that completely lacks knowledge and looks foolish because so
"Jesus Christ. You're such a briefcase Mike; Robert Frost wasn't just stopping by woods on a snowy evening."
by Jesus Christ $uperstar October 11, 2009
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2
A reference from spongebob squarepants when he and Patrick were married, when Patrick being the man of the family was confronted by spongebob about forgetting his briefcase full of donuts
by Filipinofoods February 20, 2018
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4
a case with a handle; for carrying papers or files or books
in fact he looked like a typical businesman...you know,dark suit and briefcase
by maorongrong June 23, 2007
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5
A box of Franzia, (boxed wine) preferably chilled and ready to go.
Person 1: Did you really bring Franzia to a party?

Person 2: No man this is my briefcase. I have some business to attend to.

Person 1: That's one hell of a briefcase.
by alejandrobot July 20, 2010
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6
To smuggle drugs in ones anal orifice to transport past TSA or other security
I refused to smoke the joint Kevin brought because I knew he briefcased it passed security
by diggerz March 07, 2017
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7
Get out of the car Carl! Doesnt matter about the briefcase, leave the briefcase!
by Morfee November 26, 2004
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