redonculous
adj.— «Phrases Or Words: ferociously redonculous, and KTBPA.» —“Another huge one!!” by Debra (ktbpa_bunk18@hotmail.com) Usenet: alt.fan.backstreet.boys Aug. 20, 1998. (source: Double-Tongued Dictionary)
Further reading
If you speak a second or third language, you may remember the first time you dreamed in that new tongue. But does this milestone mean you’re actually fluent? And a couple’s dispute over the word regret: Say you wish you’d been able...