In high school, me and my fellow outcast friends made our own slang. The idea what to make it so mind numbingly cringe that even using our slang to mock us would be social suicide for the cool kids. I don't know if that last part worked, but we were pretty damn cringe.
I'd give examples, but it's all in Norwegian, and incredibly cringe.
It occurs to me that the solution might be to start referring to men as "wermen" again, and revert "men" to it's gender neutral roots. That also means we can have a bunch of other prefixes for other genders.
Languages are fun.