Nonsense; yes its hard to define something, that doesn't exist. Its merely an encapsulation of a sense by many, who think that authority and the democracy that underpins is broken and is almost or completely irredeemable.
You have those who voted trump to drain the swamp.
You have more who want trump out and only give respect earned and wish to drain trumps swamp.
In 4 years time, it will drain trump2 swamp, or bidens swamp.
Then ultimately democracy will be so far gone that bad outcomes really would start to come true.