Top Definition
A word you use when your at loss for a better exlamation. Cant decide to say, "shit" "mother fucker" or just "FUCK!" ? say shmotherfuck! :)
Person 1: -accidently spills orange juice on your lap-
Person 2: .......SHHHMOTHERFUCK.

Person 1: -stubs toe- SHMOTHERFUCK OW!
by Madam_CurseAlot November 17, 2010
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