Don't use coarse words before a lady.

在妇女前不要讲粗鲁的话。

youdao

Sometimes the coarse words are included in every sentence people say.

有阵时，啲人每讲一句说话，都会有粗口字。

youdao

To assail with contemptuous coarse or insulting words; revile.

辱骂，毁谤用蔑视、粗俗或侮辱性的话攻击；谩骂。

youdao

But in the 18th century, after political union with England, the Scots did their best to stamp out their own tongue believing that it was coarse low-class stuff in comparison with the finer words being spoken by London's elite.

ECONOMIST: Scots English