The phenomena of your penis accidentally falling out of your boxers through the front opening of your boxers.
I was walking around in my house when I noticed part of my penis felt cooler than the rest. Silly me, I didn't buy the boxers with the button in the front. I had a boner blooper.
A blooper show happens when the cast of a theatrical play decides to add in various things not a part of the original blocking or lines for their own amusement. though amusing, it is considered incredibly unprofessional