An expression you would use if you would like to express your wanting to have sexual relations with a lady. Comes from the name "Scott Draper" the famous Australian tennis player, and is meant to be rhyming slang with "rape her" or "rape 'er".
For exmple, you might say to your friend, "check out that girl, I'd give her the old Scott Draper!", to which he'd say "Scott Draper?", and you 'd say, yeah "Scott Draper - love to rape 'er".