The idiom "catch napping" means to surprise someone by arriving unexpectedly while they are sleeping or resting. It can also mean to take advantage of someone who is not alert or aware. The figurative meaning is to disrupt or interrupt someone's peaceful state of mind or routine.

The idiom "rain check" is used to refer to a temporary postponement or suspension of something, often due to unforeseen circumstances such as bad weather. It can also be used to indicate that someone has agreed to continue doing something at a later time.

"Creme de la creme" is a French idiom that literally means "the cream of the cream". In English, it translates to "the best of the best". This idiom is used to describe people or things that are considered the most exceptional and elite within their category.

The idiom "raise the bar" means to set a high standard, improve something, or make something more difficult. It can also mean to exceed expectations or challenge oneself to do better.

The idiom "green around the gills" means to be extremely anxious, nervous, or worried about something. The phrase originally refers to a boat that is rocking violently due to rough seas, which can make its occupants feel ill and anxious.