My thinking in general on questions regarding coarse language is just ask as normal, but censor the title. No need to censor it in the body, but feel free to do so. Then depending on the feedback, we can edit or amend the post as necessary. If the feedback is that it's not salvageable (e.g. too vulgar, explicit, etc.), or if that was reasonably clear from the outset, then it would be closed/deleted.
Indeed, from what I could dig up, that seems to be the precedent. I searched a couple of swear words on our site, fuck and shit. Focusing on just fuck, I was surprised to find that among the questions not deleted, they were mostly positively received. Now, some of the questions were actually about the word, while it just happened to be in the context in others. Here's the one with the highest score (9): How should I understand this line from Pulp Fiction? That question did not include the swear in the title. Others did, but they were censored. The originals were not censored in the body.
As you're concerned about down votes, only 3/28 (~10.7%) of the posts had a net negative score.
Now, among the ones that were deleted, they were as I describe below: little to no research/context, gratuitous use, "non-native"/incorrect usage, and obvious trolling. In other words, they were LQQ as we're used to, but about swear words. The community came down hard in those instances (many down votes and flags).
I found similar results with shit.
Here's a sampling of (highly) positively received questions regarding these swear words with the scores (positive/negative/net):
I'm reluctant to include the deleted negative ones, as they are rather offensive. As I described above and below, they were LQQ as usual, but about swear words, and in many cases, just straight up trolls.
You can search around the site yourself to get a better idea of how your question's coarseness compares to previous questions, and assess how "acceptable" it might be.
All in all, I would say just ask as normal, censor the title, and then we'll take it from there. For the most part, it seems our user base is accepting of these kinds of questions (more accepting than I originally thought). Just make sure the question is well-researched and asked in good faith, as was advised in the linked posts.
In addition to what FumbleFingers has outlined, I just wanted to add a little bit of what does garner negative feedback for comparison. From my experience, the mere existence of an expletive in a post is usually not the problem. Questions on coarse language that
- are gratuitously laden with profanity;
- are over-the-top offensive (e.g. excessively violent, sexual, racist, etc.);
- lack research, context, or overall effort from the OP;
- are too localized, nonsensical, or in some similar way not particularly useful in teaching the usage of coarse English language;
these are generally the ones that get down votes, close votes, flags, etc.
As the linked posts advise, questions on coarse language that are well-researched and asked in good faith will generally be acceptable (or rather, tolerable). When it comes to touchy subjects, you always run the risk of getting down/close votes. But if you feel your question avoids the issues listed above, I would say go ahead and test the waters.