Matching Pairs IdiomsOnline version Some idioms by Catalina Rojas Trujillo 1 Let the cat out of the bag 2 Gut feeling 3 The last straw 4 For donkeys years 5 Ring a bell 6 As cool as cucumber 7 Cross your fingers 8 Once in a blue moon 9 Speak of the devil 10 By the skin of your teeth To allow a secret to be known, usually without intending to Many years Used to describe someone who is very calm It is the maximum degree that can be reached and fills patience Not very often To hope that things will happen in the way that you want them to Achieve something for little The intuition that a person has about a situation or person, usually when something is not going well. To sound familiar Something you say when the person you were talking about appears unexpectedly