smut

SMUT, n.

1. A spot made with soot or coal; or the foul matter itself.

2. A foul black substance which forms on corn. Sometimes the whole ear is blasted and converted into smut. This is often the fact with maiz. Smut lessens the value of wheat.

3. Obscene language.

SMUT, v.i. To gather smut; tobe converted into smut.