Famario Share definition Flag The only kid to bitch at a substitute teacher for no reason other than to yell at him/her. A.k.a. A douchebag. Dude, that kid just made the sub cry! What a total Famario. Famario by Psychoanalyser May 17, 2010 0 0 Get merch Get the Famario mug. Buy Now — $32.95 See more merch