You have a tendency to say "fact", when the evidence doesn't support you. You might want to look into this behavior of yours, as it's rather odd.
Love how you rant about me 'distorting what you say', yet here you are dictating to me on what I meant, for shame, sir, does the hypocrisy ever end with you? "Making light", as in illuminating the other absurd statement, bringing it to light, making it aware, making it known etc. etc. etc., not making a joke, having a laugh or fooling around, Mr. Facts.
BTW, I think your dictionary might be broken, Merriam-Webster has
facetious as:
* Main Entry: fa·ce·tious
* Pronunciation: \fə-ˈsē-shəs\
* Function: adjective
* Etymology: Middle French facetieux, from facetie jest, from Latin facetia
* Date: 1599
1 : joking or jesting often inappropriately : waggish <just being facetious>
2 : meant to be humorous or funny : not serious <a facetious remark>
synonyms see witty
— fa·ce·tious·ly adverb
— fa·ce·tious·ness noun
No "making light" in there, I also looked at 'dictionary.com', "yourtdictionary.com', and 'thefreedictionary.com'. How making dictionaries did you have to scan through before you found one that suited your needs?