Poz Share definition Flag Term embraced by those who are HIV positive, particularly common in the gay community. Jim is poz and will only meet up with other poz guys for fun. Poz by Kyle December 10, 2003 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