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1. The definition of a person who is a retard, and has a stupid smile.

2. person who smiled like they are shitting themselves repeatedly.

3. The act of a shitty smile.
1.That guy was a real clemfart today.
2.That person looked like he was clemfarting.
3.That guy had a clemfart on his face.
by tacotellez December 28, 2011
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