What is the meaning of "Mach, dass..."? Is it a way to urge people to do something? is it always rude? For instance, taken from dict.cc,
This is of course rude, but can mach, dass... be used, for instance as in the following sentence?
"Mach, dass (etwas passiert)" is a strong request for someone else to make something happen as soon as possible. It carries a sense of urgency and possibly authority that forbids objection or even further discussion. Therefore, in most cases, it is indeed considered rude.
However, it depends on the context. For example, it could also be a somewhat desperate plea, for example when someone is in great discomfort or pain, even if the addressed may not objectively be capable of obliging:
Mach, dass die Schmerzen aufhören!
Or, as bummi pointed out, it can be meant jokingly, to signal pretend annoyance among friends.
As so often, it's not so much what you say, but how you say it and in what context.
This phrase has two usages:
(1) to implore God for help, e.g. "[Lieber Gott, bitte] mach, dass es aufhört zu Regnen!"
(2) to (a) express your righteous anger and at the same time (b) request someone you believe you (should) have authority over but who acts contrary to your (implicit) wishes (that nevertheless he should know and comply with) to finally follow your orders, e.g. insubordinate children: "Mach, dass du ins Bett kommst!", or people lower in social status (like sending beggars off your land).
Usage (2) is considered rude only insofar as it implies a disdainful and autocratic attitude that is no longer tolerated in fathers, land owners etc. by our society. A hundred years ago it was the normal way to speak with your inferiors.
