2900 (slang) Type: noun, slang Pronunciation: /twen-tee-nine–hun-dred/ What does 2900 mean? 2900 block of Atlanta. Example sentence: “Playboi Carti is from Atlanta’s 2900 section.” Coined by: Playboi Carti Origin: Playboi Carti, UnoTheActivist, and Thouxanbanfauni grew up and spent their childhood on the 2900 block of Atlanta. 2900 in songs: “2900, my niggas, they fire” – […]