The flexibility may be conveyed with the help of WTV (WTV you want to eat is fine) and annoyance (WTV, I am not going to listen to you anymore). It is commonly used in fast messaging as one may desire to be brief. The tone makes it change meaning, where it makes one feel friendly when spoken light-heartedly, and passive-aggressive when one sends it in the middle of an argument. Users are advised to include emojis or explanatory words particularly when messaging with somebody who does not understand his or her style of texting. Know more about wtv meaning