Inspired bythe Dirty Sanchez, the Dirty Potter consists of the sticking your index finger inside your partner's rectum and then, upon retraction, smearing a humble lightning bolt on their forehead.
"I took my girlfriend to see that new Harry Potter film, where she became aroused to the idea of me performing the Dirty Potter on her later...which I did!"
The dirty pirate is when your doing your girl in the butt and when you ready to bust one you spit on her back and she turns around and you blow in her eye and then kick her in the shin. Thus she only has 1 work-able eye and 1 work-able leg. Dancing around like a dirty pirate.
When a transvestite bends over to indicate it is ready to mate. The transvestite then lowers its pants and under garments to reveal a morphed mussy and anus to reveal a purple butthole.