Islamic Interpretation of Dreams (Ibn-i Sirin):

(Large cucumber; Snake-cucumber; Squirting cucumber) In a dream, cucumbers represent distress and sadness.

Ifone eats a cucumber in his dream, it means that he will strive for something but with great strain on him and particularly if he sees yellow cucumbers.

If one’s wife is pregnant and he sees cucumbers in his dream, it means that she will beget a daughter.

Ifone is offered cucumbers as a gift in his dream, it means benefits in the long run.

(Also see Pickles; Snake-cucumber)