What does TFW imply on iPhone? TFW is an acronym that stands for “That Feeling When,” and is most of the time used in textual content messaging and social media to express an emotion, reaction, or sense. It’s greatly wide-spread on the iPhone and social media platforms like Instagram and Twitter. Many iPhone users use TFW to explicit a relatable feeling for the period of specific moments. Whether it’s about a pleased or best phone cases 2024 iphone frustrating second, TFW provides emotion to digital verbal exchange.