"Get Brexit done" but exactly when and how?

I am feeling very concerned that this hasn't actual been explained. If the Conservatives win an actual majority, although the polls do not tell us they will, we still don't know if we could just drop out with no deal - a probable catastrophe to our economy or be negotiating for years in the could get it through parliament.

Beyond the chime of the simplistic slogan ... either nobody knows or nobody is prepared to say. Does anyone actually know?