"person 1: "how about joe's bar tonight?" person 2: "how about no?" person 1: "you, sir, are an ack-ack
"noun: stemming from the slang for "anti-aircraft" - a person who shoots another person's idea, thought, or feeling down
""person 1: "how about joe's bar tonight?" person 2: "how about no?" person 1: "you, sir, are an ack-ack" What is the definition of "ack-ack"?