What does TFW suggest on iPhone? TFW is an acronym that stands for “That Feeling When,” and is almost always utilized in textual content messaging and social media to express an emotion, response, or experience. USB-C hubs with power delivery support It’s widely time-honored on the iPhone and social media structures like Instagram and Twitter. Many iPhone clients use TFW to show a relatable feeling in the course of positive moments. Whether it’s about a chuffed or troublesome second, TFW provides emotion to virtual communique.