The initial abbreviation was derived through online chats and text messages, which means For Sure. Gaming communities, social media and text messaging became common among teens and young adults. The slang can be attributed to a larger trend of contracting usual expressions so as to respond quickly. With time, it has been used on other platforms such as Tik Tok, Twitter (X) and Instagram, whereby users enjoy the brevity of expressionism in communication. In modern times, FS is generally understood as an informal way to communicate. Know more: https://radarro.com/what-does-fs-mean/
