The proper pronunciation of “Deutsche” is “”. It’s a German phrase meaning “German”. The “eu” in “Deutsche” is pronounced just like the “oy” in “boy”. The “ch” in “Deutsche” is pronounced just like the “ch” in “loch”.
The phrase “Deutsche” is usually used to discuss with the German folks, the German language, or German tradition. It is usually used as a reputation for Germany itself. The phrase “Deutsche” is derived from the Outdated Excessive German phrase “diutisc”, which suggests “of the folks”.