baekboi Share definition Flag "baekboi" is a word to describe something really cool like you don't know to say anything just say baekboi, to make it look cool. zek. i brought a new car bro, take a lookcai. fuhhhhhh GTR boi, baekboi! baekboi by filus November 22, 2021 0 0 Get merch Get the baekboi mug. Buy Now — $32.95 See more merch