GHGBGB Share definition Flag Made famous by me when countless hours of the gym paid off. Stands for Go Hard Get Big Get Bitches. Lean is in baby. BOIZ: hey dawg we gonna hit up planet er wha?Me: No shit pussy! gotta go hard! GHGBGB! aye! GHGBGB by ILLuMina7E 373 July 25, 2010 0 0 Get merch Get the GHGBGB mug. Buy Now — $32.95 See more merch