To make foul or filthy; soil; befoul; dirty.
noun.
Any foul or filthy substance, as excrement, mud, mire, or pitch; whatever, adhering to anything, renders it foul, unclean, or offensive.
noun.
Earth, especially loose earth; disintegrated soil, as in gardens; hence, any detrital or disintegrated material.
noun.
Specifically In placer-mining, the detrital material (usually sand and gravel) from which the gold is separated by washing.
noun.
Meanness; sordidness; baseness.
noun.
Abusive or scurrilous language.
Consisting or made of loose earth: as, a dirt road (a road not paved or macadamized).