0 magazines, books, pictures, films or jokes that offend some people because they relate to sex: --
There's an awful lot of smut on television these days.
1 dirt or ash (= powder left when something has burned) that makes a mark on something --
2 a plant disease that mainly affects grasses such as wheat : --
Some smuts can cause significant yield losses.
Smut was destroying many of the crops.
3 pictures, writing, language, or performances that deal with sex and are offensive --