set Share definition Flag Gang, specifically a subsidiary gang. For example, Piru Bloods is a set of the Bloods Gang. Fuck yo' bitch, fuck yo' set. set by nokianinja October 7, 2002 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug