look up any word, like muddin:
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.
by DOTB May 06, 2009