music cuck Share definition Flag The Person who’s not in charge of music in the relationship and ends up learning all the words to songs they don’t like. Matt is such a music cuck he knows every word to all of 21 pilots songs. He hates them. music cuck by Dsherdog April 25, 2020 0 0 Get merch Get the music cuck mug. Buy Now — $32.95 See more merch