Top Definition
Also known as CPS or Rudolph Cock, Clown Penis Syndrome is when the glans (head) of the penis turns bright red like a Bozo the clown's nose.

The condition can occur after trauma to the penis, but CPS can also be mimicked with the use of a red marker.
"I got drunk and passed out at my frat house. When I woke up, two of my fraternity brothers were sucking my dick. I was furious, but then I realized they also gave me Clown Penis Syndrome with a red marker (as a joke), so we all had a laugh."
by sidecarsally June 21, 2009
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