What do you mean by "as cool as cucumber"?

[Garsey]

English Idioms and Expressions, Intermediate level

ESL/EFL Test #14 "British Idioms", question 4

And I suppose you didn't panic and were as cool as a cucumber?

(a) very bored
(b) very calm
(c) very rude
(d) very stupid

English Idioms and Expressions, Intermediate level

ESL/EFL Test #14 "British Idioms", answer 4

And I suppose you didn't panic and were very calm?

Correct answer: (b) very calm
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what do u mean by as cool as cucumber?

Garsey

[Lost_Soul]

Hi, Garsey

as cool as a cucumber means very calm

(you could see it if you looked at the previous post)

[Yankee]

Although this test is called "British Idioms", all of them are also common in American English. There are only two slight differences in American English:

8. AmE = at loose ends
9. AmE = not bat an eye