It's a kind of creature in Game of Thrones that threatened to overrun the entire island.
When more characters exposed themselves as despicable and/or the remaining good ones died, people would says: "OK, rooting for the Whitewalkers now [i.e., to destroy the whole thing]"
That's a term I've never heard before, and I don't trust Urban Dictionary to tell me what it is.
What are Whitewalkers?
It's a kind of creature in Game of Thrones that threatened to overrun the entire island.
When more characters exposed themselves as despicable and/or the remaining good ones died, people would says: "OK, rooting for the Whitewalkers now [i.e., to destroy the whole thing]"
Ice zombies hellbent on wiping out the living.
The monsters in Game of Thrones.