An article title states a Black Lives Matter activist is charged with 'lynching'. When I read the article, what the activist actually did is unlawfully remove a suspect from police custody, in order to protect the suspect. However, in legal terminology, the definition of "lynching" has been expanded to mean any unlawful removal of a person from police custody. The activist was subsequently charged with "lynching" based on this legal definition of the term.
This is the original article.
In my mind, the title is purposely relying on the fact the legal definition and common usage of the term no longer match to attract attention to an otherwise unremarkable event. A reader such as myself seeing the irony in the title, expects the story to be about racially motivated violence. Instead, the story is about how an alarming term has been redefined to cover fairly un-newsworthy events so that an activist receives an ironic sentencing.
Is there a word that describes using a phrase or term in a way that is technically correct, is used to evoke connotations related to common usage, but the technical definition and actual event do not match expectation?
Sorry, this is a very involved request, but I cannot think of a simpler phrasing.
UPDATE: For the sake of this question, let's assume the legal usage of "lynch" is correct. Whether it actually is correct is a separate question. This is important because I've seen this particular technique used in multiple instances and it'd be handy to have a good name for it.