What does GG mean from a guy?

In the realm of online communication and slang, I've often come across the abbreviation "GG." Could you elaborate on what this acronym stands for when used by a guy, specifically? It seems to have gained some popularity in recent years, but I'm unsure of its precise definition. I've heard it used in various contexts, ranging from casual texting to gaming communities, and I'm curious to know if there's a universal meaning behind it or if it varies depending on the audience and context. Clarifying this would greatly assist me in navigating the often-confusing world of internet lingo.