COOL AS A CUCUMBER

If you are (as) cool as a cucumber, you are calm and not easily troubled. This phrase dates from the mid 18th century. [1]

 Examples of use:

 “She was as cool as a cucumber in Abu Dhabi and wasn’t fazed by the number of people.”

 “At launch, according to the flight surgeon’s report, Armstrong’s heart rate is up to 110 beats per minute. Collins’s is at 99, while Aldrin, cool as a cucumber, has a rate of 88.”

 “Being a mother of three young children herself, Rebecca wanted to learn more about this cool-as-a-cucumber mom so she invited herself over to her home.”

 [1] “cool” In The Oxford Dictionary of Phrase and Fable. Oxford University Press, 2005.

 Photo credit: Kat Kellner