Somthing Somthing (mashu mashu) Share definition Flag It come from hebrew, when someone wonts to say to another thet he is good or great. Someone: "How I was ? " You : " You was somthing somthing ! " Somthing Somthing (mashu mashu) by Eli Pachisker September 1, 2005 0 0 Get merch Get the Somthing Somthing (mashu mashu) mug. Buy Now — $32.95 See more merch