"woke" has a clear definition and origin in black activism. Like a lot of concepts from black activism, it became co-opted by well meaning white liberals, encompassing many other forms of progressive activism and eventually became more about virtue signalling than productive activism, much less black allyship.

Then, like so many other progressive and left-activist terms, it got co-opted again and inverted by the right into a general pejorative, indicating nothing other than mockery and caricature of the left. But it definitely came from somewhere and it at least used to mean something.

[0]https://en.wikipedia.org/wiki/Woke