dikronculous
Similar to ridonculous, but a little bit cooler. It's the most extreme version of ridiculous. Used especially if you're extremely angry or appalled.
Person 1: "I'm not buying you any more ice cream. You seriously don't need any more."
Person 2: "WTF?! That's completely dikronculous!"
Person 2: "WTF?! That's completely dikronculous!"