The Persian Windshield Wiper is when you ejaculate on a woman's (or if you prefer man's) face. Directly afterwords grab the shaft of your penis and flip it back and forth across her face like a windshield wiper hard enough to get the cum off, but not hard enough to break her nose.

When a girl gives a guy a hand job and he busts on her hand she proceeds to wipe the cum on the guys face.

to have sex doggystyle and pull out, cum all over the girls back and spread it all over back and forth

When you shoot cum on a persons glasses while they are wearing them, then rub your penis all over them smearing it. Or, while wearing glasses, you go down on a girl and she squirts all over your glasses.

When a chick gives a man head or hand while wearing sunglasses, when he cums, he squirts it all over the glasses and "washes" them.

The act of cumming on someones glasses, and then wiping with your shit covered ass hair

When riding through the wilderness, it is impossible to not have a boner. This being the case, make sure to bring a girl along. Get her to begin giving you some off-road head.

Now, this is the tricky part. Basically, you are going to open the sunroof at the perfect time so that your splooge rockets out the top of the car. Hit the brakes so that the spunk makes it forward far enough to land on your windshield. If you don't think you can make this happen, then you better hope you can close your sunroof in time. Once on the windshield, hit the wipers and use your Coors enriched Rocky Mountain man juice to clean the dirt off of your car.

This trick can also be performed in a Jeep, but be careful as there is no sunroof to close in case it doesn't make it to the windshield.