I recently submitted a definition of "rationalussy" to Urban Dictionary to make this market resolve YES: 

https://www.urbandictionary.com/define.php?term=Rationalussy

), which means it is now possible to buy a "Rationalussy" mug from Urban Dictionary. If anybody buys the mug and gives me proof that they now own it (such as photographic evidence in the comments), I will resolve this market YES. It doesn't have to use Steven's definition - if there is another definition of "rationalussy" on Urban Dictionary at the time, a mug with that definition also works. 

If I get no evidence that this has happened before the closure date, I will resolve this to NO.