The term “Nitty-gritty” is a prevalent English idiom that refers to the fundamental and crucial elements or specifics of a document, activity, or situation. While informal, it holds frequent usage in spoken business English. For instance, someone might say, “I need to grasp the Nitty-gritty of working in Excel to excel in my job.” Another example could be, “The Nitty-gritty of office policies concerning women employees feels rather peculiar; I hope for equal treatment.” In both cases, the idiom emphasizes the importance of understanding the essential details to achieve success or address concerns effectively.