Come on JHAP, I'm doing everything to ward off dimentia and Alheizemrs, (I'm a SCRABBLE CHAMP, OK?) and I'm still lost. I'm thinking this is some kind of fish/guy code for something. I keep thinking Gizzard Shad A hole.
Just for you, from the archives...
GSA = (1)Green Sunfish Association - just don't mess with them.
GSA = (2)Group of Simple-minded Accountants - just don't mess with them.
I lodged a formal protest regarding the second definition. As per the Pond Boss protest instructions I prepared form 9137-A in triplicate and kept the amber copy for my records and am awaiting the protest hearing date which I understand will be sometime in July of 2013.