流話 [－话]

Jyutping lau4 waa6
Pinyin liú huà

Definitions (Wiktionary)
  1. noun, Xiang
    improper speech; unserious speech
    (syn.) 流话子, 流話子
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    开口要有礼貌，不讲下流话。
    開口要有禮貌，不講下流話。
    kāi kǒu yào yǒu lǐ mào ， bù jiǎng xià liú huà 。
    • One must be respectful when speaking, and not say obscene things.