The act of masturbating in a peep booth and coming all over the glass partition that separates you from the naked girl.
Peep Booth Girl: "Hey fellas... c'mon in and splash the glass for me".
Other Peep Booth Girl: "Don't be shy. Lemme see you jack off and splash the glass".
A sexual position where the male shoots his nut inside the woman (or man) and yells out "Emerald Splash" at the same time, along with wearing glasses to represent Noriaki Kakyoin from JoJo's Bizarre Adventure.
The Emerald Splash was an ability in JoJo's Bizarre Adventure: Stardust Crusaders used by Noriaki Kakyoin where his ghost-self, called a stand shot emeralds out of its hands.
The nut is the emerald in sex.
"EMERALD SPLASH!" the male says as he busted an nut as well
You'll achieve something new once you've done this;