I appear to do this by 'throwing the dart wrong', and storing similar concepts adjacently.
Like I just did in the sentence above. I could have said, "choosing incorrectly from adjacent elements".
But I didn't; I chose the vivid, short, memorable form that came up first when reached for <unintentional variability in speech performance due to inefficient retrieval selection and poor discrimination between adjacent concepts>.
You'll remember the dart and the dartboard, not the phrase between angle-brackets above.
Slight errors can make you memorable, and eloquence is basically memorability