It stands for Ruru-Genshin syndrome. Someone's computer/laptop/mobile is said to have RG-syndrome when their device lags/crashes excessively due to low RAM/ crappy graphic card/ shitty wifi- usually happens while playing Genshin Impact but might occur during other times too.
Person 1: Man, my laptop's been laggin like shit. Ion know what's happening.
Person 2: LMFAOO L bozo. You've got RG-syndrome duh.
Person 2: LMFAOO L bozo. You've got RG-syndrome duh.
by Eleanor8014 November 25, 2023

by Lupuni July 24, 2018

"RG" stands for (RIZZ-GOD) which means having the ability to flirt very good with exponential results
by KJ WIT THA . April 2, 2023

Popular twitch fanbase of the streamer known as Ricegum. The group thrives off negativity, gives no fucks, and is always beefing with another fanbase. The only other alliance with RGS is currently DRG.
by RGSONTOP August 1, 2021
