Định Nghĩa và Ý Nghĩa của "be no picnic"

What is the origin of the idiom "be no picnic" and when to use it?

The idiom "be no picnic" is used to describe a situation or task that is challenging, difficult, or unpleasant. The phrase originated in the early 20th century and draws its metaphorical meaning from the idea that a picnic is typically associated with leisure, enjoyment, and relaxation. Therefore, when something is described as "no picnic," it implies that it is the opposite of a pleasant and enjoyable experience.