have at verb 2exclamation 1forms 3 verb2 •(figurative) To take on; to begin dealing with.A huge dish of food was served, and we had at it. •(no longer used) To attack; to engage in combat with.The Prince of Venosa was in their midst, shouting: "Have at the traitor! Kill! Kill!" — 1909 exclamation1 •(informal) Go ahead. formshad at · having at · has at
