Is WYF Casual or Formal?
Because WYF is a very informal piece of text speech, it must never be utilized in any situation that requires professionalism or etiquette. This should only be used through texting, instant messaging, or social networking platforms.
This phrase, along with other types of slang such as WYD, IDT, and BRB, should never be used in a business email, on a resume, in a letter, or in any other setting that requires a more serious tone.