The letter or letters "A" could have so many meanings and interpretations making this one of the greatest poems of all time. "AAA" may represent the American Automobile Association, or a cry for help when one's car breaks down in which they would need to call for Triple-A. "A" is the first letter of the alphabet, and the first action that one may do while being born is screaming which is commonly written down as "AAAAAAAAAA". Very good and very poetic.