Going into that meeting felt like walking into a lion's den.
lion's den
idiomAny dangerous or frightening place.
Origin
disputed originAfter the story of Daniel in the lions' den in chapter 6 of the Book of Daniel.
The young lawyer knew that entering the lion's den to face the aggressive judge would be the hardest part of her career.
Despite his deep anxiety about the hostile board of directors, he steeled himself and stepped into the lion's den to defend his controversial proposal.