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A very arousing self-orgasmic sexual technique done by inserting your penis all the way into any insertable and penetrable object and moving your hips in a circular motion like wiping a window and then ejaculating inside while still maintaining that same circular motion.
1: Dude, I finally window wiped my girl's ass the other night!

2: So Karina, did you let David window wipe you yet?

3: Leland told me that after he was done window wiping his girl he gave her a hot jiminy for watching some BBM porn.
by Darren Louis April 15, 2008
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