aux boy Share definition Flag We all know them. The bastards that hog the aux, play the song you showed them, and think they know every F-ing thing about every song under the sun. ‘Not this one again Toby... stop being such a bloody aux boy and let me play my song’’ aux boy by ClooBoo June 17, 2019 0 0 Get merch Get the aux boy mug. Buy Now — $32.95 See more merch