F.W.Y.H.
F. W. Y. H. means you don’t even care if people are right or wrong.
F. W. Y. H. You said I was wrong. I said you were dumb. I didn’t care.
F. W. Y. H. I didn’t listen. I just kept eating my burger.
F. W. Y. H. I didn’t check. I just said ‘whatever’ and walked off.