Why do you think you’d need to not sensor yourself with whore, but can’t say queer?
On a side note, it rhymes, but it doesn’t really make as much sense as slut or whore.
I used one but not the other because my best interpretation of modern social sensibilities is that “whore” is not considered terribly offensive when it’s directed outside of its more literal sense, whereas “queer” is only acceptable in positive discussion of non-heteronormativity.
The second gear- usage just comes from a time (and communities behind the times) where the slur is used more broadly to mean “anybody I don’t like.”