The act of splooging your man juices on the top of another persons head after they suck you off. To give a sandy tophat, once you feel like your going to cum, you pull your penis out of their mouth and ejaculate on their head.
"Man, youd never believe that my woman let me give her a sandy top hat last night!"
When at the beach, sand is lodged underneath the foreskin of the penis and gets stuck.
"Dave was skeptical about visiting the nudist beach; when he heard about how John got a sandy dib-dab last time.
"Bob decided never to try sex on the beach again as he had to deal with a sandy dib-dab"
When you are having pitty sex with a woman and she sits on you like a cowgirl then leans back so her feet are in your face while she lays on your knees like a recliner while you rib her shins with your rough hands so it feels like gritty sand on her legs.
Guy 1: " It was so hot. Me and Barbra had amazing intercourse last night. We even did a Sandy recliner!"
Guy2: "Man I wish that sounds as hot as the bond between me and my uncle on a cold night"