Definitions by DRoseMVP1235

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..."

ack-ack by DRoseMVP1235 May 26, 2011