Green’s Dictionary of Slang

(US black) ludicrous, absurd, worthy of verbal denigration.

1997–2001		Online Sl. Dict. 🌐 ricockulous adj 1. ridiculous, absurd. Note: first used on the radio/TV show ‘Love Line’.
2000		personal correspondence: ricockulous – a more extreme version of the word ‘ridiculous’ Good for when you want to add more emphasis.
2012		C. Eble (ed.) UNC-CH Campus Sl. 2011 9: RECOCKULOUS — ridiculous to an extreme degree: ‘Sara drank so much champagne at the wedding that by the time it was over she looked recockulous.’.
2014		C. Eble (ed.) UNC-CH Campus Sl. Spring 2014 12: REDONKULOUS — ridiculous.
2017		3ammagazine.com Jan. 🌐 And they [i.e. theories] weren’t just false, and they weren’t just ridiculous, they were REDONKULOUS!