Doing a chick doggy style, then both laying down flat, male on top of her while continuing to stroke. Not unlike riding a surrfboard in a face down horizontal position.
I was strokin that girl from behind for so long I got tired and had to finish by surfboarding her.
I like surfboarding so I can mash my nuts between her thighs while I'm fucking her in the ass.
A sexual move where a man rests his penis between a woman’s labia and glides back and forth without penetration. The grinding pressure can make her gush or squirt — creating a literal “wave.” The name comes from both the sliding motion and the wave-like effect.
Slurboarding is what happens when you drunken type on any kind of keyboard, full size or touch screen. It's the equivalent of slurring your speech when drunk.