roughstuff I. \ˈ ̷ ̷ˌ ̷ ̷\noun Etymology:rough (I) + stuff 1.: an undercoat of paint used to level inequalities of a surface 2.usuallyrough stuff: boisterous behavior : violent treatment < allowed no rough stuff in his dance hall > < if the fellow didn't pay off, they went in for rough stuff — A.J.Liebling > II. transitive verb : to paint (a surface) with roughstuff