Gooey duck

[Sarah]

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)

[Rihanna]

aka geoduck (Mollusca) has large [clam digger]

[Becky]

Big Floppy Dildo like object that resembles an uncircumsized penis...aka Robbie Loehle

[Rihanna]

Overall Famous Runescape Clan Leader.

[Couch Potatoe]

The Gooey Duck is when you and your lady friend are having sex in a pool, hot tub, or any other body of water, and when you cum you pull out and put one of her legs on the side of the pool and jizz on it. That way, when she puts it back in the water, she swims weird because she is trying to get it all off, much in the way a duck would swim if it had something sticky stuck to its leg.