The idiom "clean sweep" refers to a complete or thorough success in accomplishing something, often involving the removal of all obstacles or opposition. It can also mean that everything is done with great efficiency and effectiveness.

The idiom "cold sweat" refers to a sudden feeling of fear, anxiety, or stress that causes one's skin to become clammy and cold with sweat, even though they are not physically exerting themselves. It can also refer to a situation or event that instills such feelings in a person.

The idiom "bread and butter" refers to something that is essential or necessary for survival or basic necessities, such as food and shelter. It can also refer to a regular or reliable source of income or employment.

The idiom "better off" means that someone is in a more advantageous position or has better prospects than another person. It can also mean that someone is happier, healthier, or more successful than someone else.

The idiom "variety is the spice of life" means that having a variety of experiences, people, and activities can make life more interesting, enjoyable, and fulfilling.