Is there a technical name for the "tumbling" phenomenon? When your first stage is almost out of fuel mass, so the CoG is not where it was when you launched and

Is there a technical name for the "tumbling" phenomenon? When your first stage is almost out of fuel mass, so the CoG is not where it was when you launched and it's like you're pushing a bowling ball with a fishing pole instead of a giant steel beam, so you tip over.