Sick Chad Share definition Flag Sick Chad is used when one person says something that's so cool only Chad could do it. Now the person saying this isn't Chad but it's something only Chad would say. Bro1: Hey bro I banged two chicks last night and they both had boyfriends.Bro2: Sick Chad. Sick Chad by dylanswi September 4, 2016 0 0 Get merch Get the Sick Chad mug. Buy Now — $32.95 See more merch