Shmosu Share definition Flag It means you suck for using words like 'Gosu' '1337' or 'Leet' and 'Uber'. Get a life for 15 $ you fuking moron... X: GoSu G: Shmosu X: Shmosu? Wtf duz dat mean? G: Means get a life for 15$, you dumb jew X: o_O ok.. Shmosu by Gaderas May 14, 2004 0 0