Erection Day
"Erection Day" is the seventh episode in the ninth season of the American animated television series South Park. The 132nd episode overall, it first aired on Comedy Central in the United States on April 20, 2005. In the episode, South Park Elementary's talent show is coming up and everyone expects Jimmy to win. Jimmy is elated to perform his stand-up comedy routines, but begins to suffer from unwanted erections and tries to resolve the problem.
Source: Wikipedia
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