The term "idgaf" is an abbreviation for "I don't give a f***." It is a slang expression used to convey a sense of indifference or lack of concern about something. People typically use it when they want to express that they are unaffected by the opinions, criticisms, or situations around them.
The term "idgaf" is derived from internet slang and informal communication, combining the phrase "I don't give a f" where "f" is a vulgar term used to emphasize disregard. Its usage has become popular in online chats, social media, and casual conversations, especially among younger people.