yasiin bey Share definition Flag The artist formally known as Mos Def. Bey means Mr in Turkish, so Mr Yasiin. Yo I saw Mos Def... I mean Yasiin Bey in concert last night. yasiin bey by Piickle November 4, 2013 0 0 Get merch Get the yasiin bey mug. Buy Now — $32.95 See more merch
