Strong nerves British noun phrase
Noun such as stomach is sometimes used instead of nerves. I don't have a strong stomach, so I could never be a surgeon. You can use "to have a strong stomach" as well. You need a strong stomach to go on the giant roller coaster.
Working as a hospital casualty personnel must have strong nerves.
You must have strong nerves to dare to cheat in front of the exam invigilator during the exam.
You must have had strong nerves to investigate this murder case.
I don't have strong nerves to be a forensic pathologist who often deals with death bodies.
Someone has strong nerves enough to watch horror movies which are pretty gory. Those are absolutely not for me!
She must have strong nerves that she can try those kinds of weird food which are made of insects.
A group of bad or sinful people
To count the number of people in a group to determine who is present
Daughter: So I really want all my friends to have a great time. I was thinking it would be a good idea to have some candy out on the tables for people to snack on.
Mother: Well, if you want them to really enjoy themselves, candy is dandy but liquor is quicker.