"Erection Day" is the seventh episode in the ninth season of the American animated television series South Park.
Jimmy is elated to perform his stand-up comedy routines, but begins to suffer from unwanted erections and tries to resolve the problem.
This makes him afraid to perform his stand-up comedy routine at the South Park Elementary Talent Show for fear that he would be embarrassed in front of the entire school.
When this ultimately fails, he goes to Colfax Avenue, the red-light district of town based on a suggestion from Officer Barbrady, looking for sex.
In the end, Jimmy manages to distract the pimp with his comedy routine, while Nut-Gobbler subdues him with a club to the back of the head.