Fudgenaut Share definition Flag Someone who seems to have been exploring crap for all of his or her life.(see fudgeknot) You haven't seen a single episode of the brady bunch??!! You are such a fudgenaut!!!! Fudgenaut by Shortman October 5, 2004 0 0 Get merch Get the Fudgenaut mug. Buy Now — $32.95 See more merch