For what it’s worth, I agree with Scott_Sauyet.
It’s about understanding how much the current name can be a problem. Reading “How to stimulate User Growth of TW?”, I see that while the name issue is there for some users, while others, like Eric Shulman didn’t find it a problem, there is no consensus.
So we need to understand, is the negative meaning of the name really that common? In which countries is it widespread, and how much (in all English-speaking countries)?
_What I would recommend (if possible) is to do a survey to see how many users recognize negative meanings in the name TiddlyWiki, not so much on the quality of the name (many users may have gotten used to and become attached to the name). And perhaps, ask for a personal opinion from the users of the countries concerned, so as to collect more first-hand information.
Maybe even on this platform. (But as a fairly new user I don’t know if there’s a way to make a survey)
Although not very important I will tell you my perspective, I’m Italian, so the name TiddlyWiki didn’t have any connotation, rather, I found it a pleasant name, which more than anything else evoked lightness. Even when I found out about it, when I searched “Tiddlywinky” I didn’t immediately find what were those derogatory meanings .
(I want to say, anyway, good job telumire for creating this topic: whether the name will change or not, it’s a very important discussion to have)
If a name change were to be made, I would still stay close to the original name (for example, I like the name proposed by ohok, “TidWiki”, it removes any negative meaning while remaining fairly faithful to the original)
Of course, if changing it was easy and didn’t involve a lot of work, I’d change it without hesitation (although I suppose it’s really not an easy thing 
).
Then aside from the ambiguous meaning for some users, we should also see if the name is attractive for new users, (for me it is, but it could improve) so let’s keep brainstorming, maybe a solution that no one expects is just around the corner