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1.
Origin: The Smurfs - happy, joyful little blue creatures.

1. When the notion in question is the opposite of happy and joyful.

2. When something isn't quite right.
Example 1:

Person 1: <acting like a retard>
Person 2: Dude, you're acting so un-smurfy.

Example 2:

Person: Did you see that car wrapped around the telephone pole? How un-smurfy!
by Canadavey April 23, 2006

Words related to Un-smurfy

dumb happy joyful sad slang