How about smartmouthfool?
But I will think on it if you want.
You have definitely made a total fool of yourself. Not just a partial one.
ok I get it. PartialMathematician, PartialFool....
But it still does not fit for you.
Maybe
PartialMathematiciansmoron but PartialMathematician may not want to be linked to you for ever.
PartialMathematiciansidiot.
PartialMathematiciansfool. That one is not too bad.
PartialMsFool Maybe that one. Yea that seems ok.
PartialMsTotalFool
Actually the fool in a yesteryear King's court was the only person who could get away with criticising the King, whether he was a idiot or not. He usually kept his head, in a literal sense, when others did not. So maybe being PM's fool might appeal to you. Everyone else on the forum will either know or not care where the name comes from but you can live in a make believe world thinking you are a witty intelligent fool.