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2.
another way of saying 'mate'

usually used by chav type people...or occasionally used to mock chavs when used ironicly.
oh, shmate, dat is a bangin tune man innit
by cheesebirthday August 03, 2009
 
1.
I just love to Shmate on Tuesdays.
by tiff7290 September 21, 2010
 
3.
Funny Way
of saying shit
BullShit!!!
in this house we say bull-shmate
by budd September 06, 2003