The jets of a black hole can shake like a whip due to magnetic fields interacting with the plasma of the jet.
Sing the Body Electric
Supporters of the electric universe model will argue that these discrepancies can be overcome by modifying the theory. If you tweak this or that in the model then it can be made to agree with experimental observation. But tweaking a model to make it fit is a weak argument. Using a model to make a clear prediction is a stronger one.