A sense of humor refers to one's ability to perceive, understand, appreciate, and express comedy or humor. It is a person's perspective on finding things funny or amusing and their willingness to share or participate in humorous situations.

The idiom "black book" refers to a list of people who are considered untrustworthy, dishonest or disreputable. It is usually used to refer to a group of individuals who have been known to cause trouble for someone.

The idiom "all hell will let loose" means that something terrible or disastrous is about to happen. It is often used to describe a situation where chaos, disorder, and confusion reign. Example usage:

• The storm was so severe that all hell will let loose if it continues for another hour.

The phrase "by dint of" means to achieve something through hard work, perseverance, and/or skill. It implies that the person or thing being referred to worked diligently and efficiently to accomplish a task or goal.

The idiom "don’t put all your eggs in one basket" means that one should not risk everything on a single opportunity or idea, but instead diversify their portfolio of investments, interests, or plans.