In fiction writing this pattern known as “Burly Detective” Syndrome, see https://www.sfwa.org/2009/06/18/turkey-city-lexicon-a-primer..., https://tvtropes.org/pmwiki/pmwiki.php/Main/BurlyDetectiveSy...
Fortunately, I don't think it's as bad to do that in fiction, because the author is going to establish how the world works to begin with, and therefore makes sure you have enough to know whether the alternate phrases mean that character or someone else, so, at worst, it's just cringey rather than confusing.