The idiom "Dutch uncle" refers to an older man who is not a relative or an actual uncle but acts as a mentor, advisor, or family friend to younger people, especially men. He may provide guidance and advice on personal matters, career development, and other life-related issues.

The idiom "hold tongue" means to keep quiet, refrain from speaking, or not say something that may upset someone. It is a way of suppressing one's thoughts or emotions to avoid causing harm or discomfort to others.

The idiom "at bottom" means to the very lowest point or level, often used to describe someone's character or actions. It can also mean to get to the root cause of a problem or issue.

The idiom "sticky fingers" refers to someone who is greedy or loves to steal things, typically small items that are easily accessible. It suggests a person who has a tendency to get stuck with the idea of taking something without permission or payment.

The idiom "no pain, no gain" means that if you want to achieve something, you must work hard and face difficulties. It suggests that progress and success often require effort and struggle.