VomitHatSteve
Hat STYLE. Not contents.
You mean...How about a tugboat horn? Dog bark? Rooster crow? Fart sound? An infant's laughter? Wilhelm scream?
Like a lot of mix advice, this one gets better the earlier in the process you can address it.
Best option: write the song such that you don't need to do alternate, radio-friendly mixes
Good option: Record an alternate take with an alternate word using the original vocalist and drop that into the alternate mix.
Ok option: Reverse, distort, mute, or replace the word in the isolated vocal track in the alt mix.
Bad option: Conceal the word in the master.
I assume it's just one beat worth of cursing (and not a long, poly-syllabic thing)? If so, line up your edits with the beat you need to censor, and you should get smoother results. (e.g. Reverse or mute the entire beat where the swear occurs.)