Noun, and also a verb (corn dogging).
A corn dog is a sexual act on the beach where the male (or whichever party has the dick) pulls out mid-fuck, plunges the moist phallus into the sand, and withdraws it, now covered in a fine layer of sand. Thus the hot beef dog has been corned, and can be re-inserted into the snatch.
Her: I've always wanted to have passionate sex on the beach.
Him: Well, I've always wanted to corn dog you.
Her: I love corn dogs!
Him: I bet you do.
Her: What are you doing?
Him: How's the sandpaper telegram?