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1.
The act of quickly inserting one's finger into an unsuspecting victim's bummhole while shrieking "SHMY!"
Girl 1: I think that guy behind us with the backwards Blue Jays hat is about to shmy me.
Girl 2: Ya he already shmyed me
Guy 1: *inserts finger into clothed bummhole* SHMY!
by shmy September 09, 2011