Fuckpuss Share definition Flag A naggin' fuckhead who is always dickin' around and is a year-round pain in the ass. "Steven, look you little fuckpuss, quit the bitchin' and grow the fuck up!" Fuckpuss by FaB_D_z April 11, 2009 0 0 Get merch Get the Fuckpuss mug. Buy Now — $32.95 See more merch