There were lots of equally good but maybe equally wrong answers on the other thread= nothings adds up, adds up to nothing, 3 rings, 3 ring circus (not sure of that- why circus), zero sum, etc
Personally I don't think that works very well :-)
With these things there isn't really a definitive answer a lot of the time.
I suppose that is part of the fun of it
Just thought of another possible answer- much add o about 0 (much ado about nothing)
The setters decision is final but some of the other suggestions such as noughts and crosses seem just as good as nonplussed to me