Prior to intercourse, typically anal, the phallus, dildo or fingers are coated in an adhesive and dipped in sand. Following the coating, the penetrating object is used feverishly. Think of sand paper in a woodworking project. The OK sandblaster can be used in conjunction with many other techniques; the boston shocker, the mini van, the Houdini, the Eiffel tower, etc...
Dude1: Man, I'm thinking about going to this party tonight to hook up with Jenna.
Dude2: You don't want Jenna, trust me. Tim and I wrecked that bitch with an Oklahoma Sandblaster-Houdini combo last week and she'll never be the same.