WTF most often refers to:WTF (Internet slang), an expression of disbelief. WTF may also refer to: WTF, a term of disbelief, a form of disbelief. WTF is also known as 'WTF' or 'W TF' WTF can also be used as a term for disbelief.
See also: .wtf, WTF?!, WTF with Marc Maron, Marc Maron, UTF-8, and WTF! (film).