A slur used by internet racists and homophobes. It stands for the four Gs found in two very offensive term put together to make a ridiculous still offensive term.
The original usage was more popular in the early 2010s, and used by YouTubers such as iDubbbz or 4chan users, but had apparently been shortened to get around moderation.
Nowadays, it can be seen on discord or Facebook.
"4G/GGGG"
"ok 4G"
"I think I'm getting 4G connection out here"
"Wow GGGG"
On the contrary, 4-G's do not refer to "four thousand dollars." They refer to an exceptionally obese person who has so many rolls, it looks like they have four guts. Often found in short, slutty girls who try to emphasize their "4-G's" by wearing skin tight clothing. This creates the muffin top effect, back-tits, and the "talking bellybutton."