The Gooey Cowgirl is a move after climax that the male does to his whore. After a long sexual experience, the guy pulls his dick out of her right before jizz-time, but he lets loose into a 10-gallon hat that he either has laying around, or had on his head while ramming his whore beforehand. Then, he proceeds to put the 10-gallon hat on her head, which almost always results with his jizz rolling down her face. Sometimes, after the hat is placed on her head, the girl is told to shout, "YEE HAW!!!"
The Gooey Cowgirl was birthed by Nick B. in Wilmington, Massachusetts during his junior year @ Wilmington High (Class of '07).
Whore: Oh baby, give me a Gooey Cowgirl, ooooh.
Guy: Yeah baby, yeah. Hopefully my load can all fit in the hat this time.
*Proceeds to give her a Gooey Cowgirl*
Whore: YEE HAW!!!