More accurately, it’s being forced to move a specific piece despite disadvantages, because not moving it would result in an even worse outcome — as opposed to moving a different piece that you’d otherwise prefer to move. So it means being forced to move that first piece instead of not moving it (instead of moving a different piece).

And that’s the generalized meaning in German, being forced to act with respect to a specific thing, where you’d normally prefer to keep it in its current state.

What happens if you don't move in chess? Honest question.

The word has it's use outside the chess world though and there it is as I wrote it.