Writer's block. Fight fire with fire.
When writer's block shows its head, the worst course of action is to sigh and mutter, "I can't write anything at the moment." This immediately becomes a self-fulfilling prophecy.
A new tactic I have been experimenting with is to tackle it head on and deny writer's block any chance of taking hold by writing about writer's block right there in the moment it is occurring.
'Throw it down' came through one of these moments.