The act of lifting your penis and pressing ones ball sack against a translucent surface (usually a shower door). Almost always combined with an attempt to get an unsuspecting victim to look at the display. The victim sees something shaped like a large clam (like a "geoduck" --pronounced gooey duck), hence the name)
1. Chaz just totally gave his fiance, Ann, the gooey duck. I wonder if she'll still marry him?
2. Goddamn! I just got the gooey duck from Andy. I think I'm blind!
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