GOGA? Acronym meaning help?

So I've followed Donte moncrief for awhile on social media. And he always adds #goga and he also has it tattooed on his forearm. He and other ole miss players said it to each other. And at one point a lion was used for symbolism.

What am I missing? Is it religious? Or an acronym?
I guess I'm out of the loop. No amount of personal research uncovered a plausible answer.

Anyone know what it means?
TIA