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Another way of saying smash but with much stronger meaning.
"Bruv I wont just smash his face in i'll absolutely SMARSH it in!"
by Vamz Kidd October 07, 2007
A hybrid of Smarmy and Shitty, can be used as a verb, adverb or an adjective.
That douchebag at the conference smarshily tried to pick me up!

He made a smarshy attempt at not having to go home to an empty bed, yet again, but he was too smarshy to get any.

He really smarshed that up!
by Noneofurbiz September 30, 2011