There’s also people using the term “Monday” to refer to black people. (So they can say “I hate Mondays” and stuff without it being immediately obvious).
“Those [kinds of] people” is another pretty transparent one.
In Canada, there was “traditional Anglo-Saxon words”, lol
None of these seem apolitical to me. I would associate most of these with right wing philosophies. I was specifically looking for examples of apolitical dog-whistles.