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3.
Anything used by guys to shield oneself from the rain...bags,boxes,papers etc. Anything other than an actual umbrella.
I'm using this box as my Manbrella.
by JoeNJ1 September 06, 2011
 
1.
an umberella used my males often over the age of 30
it was pouring down so i pulled out my manbrella from my man bag
by tattooine068 October 31, 2007
 
2.
A large umbrella, usually then length of a walking stick and too big to be carried in a womans hand-bag. When open it is able to cover more than one person comfortably
I prefer to use a manbrella instead of those little umbrellas some women carry with them
by DarkKnight1000 July 11, 2009