Set Your Face Share definition Flag An insult used to confuse and/or change the facial expression of the receiver. An individual is angering and/or annoying you, you tell them to "Set their face""Bro, Set Your Face!" Set Your Face by Harrison S./Zack W. July 10, 2009 0 0 Get merch Get the Set Your Face mug. Buy Now — $32.95 See more merch