Murky/uncharted waters phrase
A situation that is unfamiliar to someone and potentially dangerous or difficult.
As I walked inside that abandoned house, I realized that I was getting into completely murky waters.
When I first visited Vietnam, I was in uncharted waters crossing busy streets.
When he first started working as a Youtuber, he entered murky waters of copyright law.
The origin of this phrase is not clear.
1. An unlucky situation
2. An interjection used to express sympathy for someone's bad luck
1. I have had some tough beans recently. I got low marks and lost my bike just two days later.
2. A: I've got a low mark.
B: Tough bean, bro.