​The gift of the gab

​The ability to talk fluently for a long time

​A hair's breadth

​A very short distance

​The last straw

​An additional problem, misfortune, etc. that finally overcomes a person.

​A hot spot

​A country or area where there may soon be a war or other trouble.

​A hard nut to crack

​Someone who is very difficult to deal with.

​A square deal

​Just and fair treatment, especially in business

​The rat race

​A constant, competitive struggle to be more successful than other people in a business, a profession, etc.

​A low profile

​Attitude or behaviour that does not assert itself greatly or attract much public notice.