Marry, Shag, Kill: A Relationship Metaphor

What is Marry, Shag, Kill, Anyhow? Known under several names, including “Marry, F*ck, Kill”, “Marry, Snog, Kill”, and “Marry, Kiss, Kill”, it is a game meant to rate the relative attractiveness and/or suitability of celebrities or fictional characters. Usually, one person will list three characters (say, Harry Potter, Hermione, and Ron Weasley). You would “force” choose which one you would “marry”, which you would “shag”, and which you would “kill” (or get rid of).