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The ability to be reborn again every new episode even though you were killed in the previous one. Basic immortality. Possibly due to alien genetic engineering.

Must be a South Park, Colorado resident, and be inrolled in grade school. Also must be named Kenny.
We all thought he died in the car crash, but his kennyism was strong and he was back in class on Monday.
by Youtellme73 July 17, 2017
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Is when an individual develops mental problems which decreases their ability to be a good league player
If you are diagnosed with kenny-ism you are 100 guaranteed to be reported for unskilled player
by WOOchuu July 31, 2018
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