ridonkulous adj. (very) ridiculous. Also ridonculous, redonculous, redonkulous, redonculus, redonkulus, ridonculus, ridonkulus, redunculous, redunkulous, ridunkulous, ridunculous, ridunkulus, redunkulus, redunkulus, ridunkulus. Editorial Note: This word is different from ridorkulous, ‘extremely dorky.’ (source: Double-Tongued Dictionary)