The Marrooness Share definition Flag The term used to describe any Scotch College rugby union team. Generally used when belittling or ripping on the opposition The Marrooness is gonna crush you bastards into an infinently dense singularity. The Marrooness by Rugby Man 101 May 30, 2008 0 0 Get merch Get the The Marrooness mug. Buy Now — $32.95 See more merch