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.
"After I came on that bitches face, she started to complain, so I grabbed my cock and gave her a Persian Windshield Wiper"
by The Middle Eastern Sex Master February 10, 2010
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