W.T.D.H.W.G.T.M.F.F.S.S.D.?

Best definition
W.T.D.H.W.G.T.M.F.F.S.S.D.?
What the damn hell would Gary the mother fucking friendly sea snail do?

Girl: Should we get dinner?

Guy: W.T.D.H.W.G.T.M.F.F.S.S.D.?