bffr Share definition Flag stands for be fucking for real. used when you want someone to stop lying or to get in touch with reality. person 1: yeah im not like other girlss in different. person 2: gurl- bffr 💀 bffr by heluvsme_andonlyme<3 December 21, 2022 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