Apparently you have no sense of humor, either.
Well, that's a list of recognized fallacies. But, you are right, not being on the list doesn't mean something isn't a fallacy. On the other hand, if you are claiming something, reductio ad absurdum in this case, is a fallacy, despite no one recognizing it as such (but yourself, of course), the onus is on you to prove it is, not me to prove it's not. Have at it. I'll get some popcorn.