irish bull — a paradoxical statement that appears at first to make sense. Example: He's the kind of guy who looks you right in the eye as he stabs you in the back.
sitting bull — 1834–90, American Indian warrior: leader of the Hunkpapa; victor at Little Bighorn, 1876.
to the full — completely filled; containing all that can be held; filled to utmost capacity: a full cup.