Brosyphilis Share definition Flag funny way of stating someone is your "BROSIF" or just going back and forth with someone doing multiple brosif jokes guy1: sup brosif havent seen you in a while. guy2: come on brosyphilis we hung out last weekend. Brosyphilis by LC121 July 14, 2012 0 0 Get merch Get the Brosyphilis mug. Buy Now — $32.95 See more merch