According to the Oxford English Dictionary [sorry this link only works for UQ users] ( a very very very cool website…because it has settled many an argument …and is the source of many weird and wonderful words)…….
facetious Characterized by, or addicted to, pleasantry; jocose, jocular, waggish. Formerly often with laudatory sense: Witty, humorous, amusing; also, sprightly. a. of utterances, compositions, actions, etc.
Such a funky word.
And what makes it even more funky (thank you Miss Juanita) is that it is one a select few words in the english language that has EVERY vowel in it…AND in order (a,e,i,o,u).
Just had to share that titbit of information. It has enriched my life ever so slightly.