I have a stupid question that I can't answer...help me, but be gentle

[Jolly Blue Giant]

Okay, I constantly hear (actually read) the term JAG   

I know that in the military it has something to do with Army lawyers or military court or something like that. But I see it a lot on the internet, and I've even seen it on this board (not lately, but I just thought about it when seeing JAG advertised on TV), but it has nothing to do with the military

For instance, football player "A" is called a JAG (apparently, a negative connotation). I've been interpreting that in my head as "Just Another Giant"  , but considering the context for which it has been used, it doesn't make sense...not to mention, what is "just another Giant"? Is that a bad thing to some fans?

I know it colloquial for something, I just don't know what it is. I try to keep up with the latest acronyms and lingo, at least the most common ones. But I'll be damned if I know what a JAG is if it isn't about military law and its court system

[Ed Vette]

Just another guy.

[Bob In PA]

Judge Advocate General - A judge advocate general is a principal judicial officer for a military branch or for the armed forces at large

JAG corps - the group of military lawyers serving under the Judge Advocate General.

Bob

[LennG]

 Jobs for America's Graduates (JAG)

https://www.in.gov/dwd/jag/