Определение и Значение "[give] a shit"

What is the origin of the idiom "give a shit" and when to use it?

The origin of the idiom "give a shit" in the sense of expressing concern or interest is not precisely documented. However, this expression emerged in the English language, particularly in informal and casual speech. The use of "shit" in this context is offensive and serves as an intensifier to emphasize the level of emotional involvement or commitment. It is used to convey a strong degree of concern, interest, or caring about something or someone.