What is the name of the rhetorical device of slightly changing a standard phrase?
Here is an example:
McDonald's Yuan Menu
The original word, "Dollar," has been replaced with "Yuan," giving the phrase a new meaning, but a recognizable context.
Here's another example:
Clean Air Guitar Act
The word, "Guitar," has been inserted into the phrase, "Clean Air Act."
A near identical question has been asked here, "Changing a quotation so that the original is recognised, but has been given a new meaning."
Here are the answers that were provided to that question:
pop culture reference
play on a quote
None of these answers are good. Trope, reference, and allusion are very broad terms. More important, they don't actually describe the act of slightly altering a phrase, and instead are describing the mere mention of a phrase. Snowclone is not correct because a snowclone describes a template based on an idiom.