A screaming sandy occurs when you're having sex with a woman on the beach. Once you have a good natural lube worked up, you pull your cock out of her, dip it in the sand, and proceed to fuck her brains out. Naturally, you're penis will act somewhat like sandpaper but don't let that stop you.

the art of remembering an arousing occurrence or some porn you watched while masturbating, often handy if you have no porn or your in the shower