The original meaning of dad is "your dad", which is now often used in men's self-promotion, conceit, or angry and joking words. It is equivalent to Laozi in Mandarin. Dad has nothing to say to you. It means I don't care about you.
origin
Malaysian Chinese Belin was on fire when the anchor Chloe Wang broadcast live. He spoke a pidgin mixed with Minnan and Mandarin in the live broadcast room. In the video, he interacted with the audience with a strong Minnan accent. From time to time, because of the audience's stupid questions, they will jump out with rude words like "Belin", which is very funny.
Because of its extensive use in spoken language, this insult is not strong in today's context, but it is still inappropriate for elders and bosses to use this word.