Bully Good Day Share definition Flag Saying from the beginning of the 20th century stating that you are having a great/awesome day. Sam: "How are you today John?" John: "I am having a Bully Good Day!" Sam: "Bully!" Bully Good Day by Bimmer Man December 17, 2011 0 0 Get merch Get the Bully Good Day mug. Buy Now — $32.95 See more merch