Dumb blonde Share definition Flag A stereotype made by insecure brunettes, who are jealous that guys just like blondes better!!! Brunette: ew look at that dumb blondeGuy: dayyyyum that blonde is hot af Dumb blonde by Sexy blonde chick December 31, 2014 0 0 Get merch Get the Dumb blonde mug. Buy Now — $32.95 See more merch