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Jyutping faat3 kwong4
Pinyin fā kuáng

Definitions (粵典–words.hk)
  1. 動詞
    突然​神經​失常​,​做​啲​唔​合​常理​嘅​行​為
    to go mad
    • 佢隻狗尋日突然發狂,咬傷咗佢主人。
      佢只狗寻日突然发狂,咬伤咗佢主人。
      keoi5 zek3 gau2 cam4 jat6 dat6 jin4 faat3 kwong4, ngaau5 soeng1 zo2 keoi5 zyu2 jan4.
      His dog suddenly went mad yesterday and bit its master.

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Jyutping faat3 kong4
Pinyin fā kuáng

Definitions (CC-CEDICT)
  1. crazy
  2. mad
  3. madly
Definitions (Wiktionary)
  1. verb, verb-object
    to go mad; to go crazy
  2. verb, Hakka, verb-object
    to have a nightmare
    (syn.) 發青暝, 做恶梦, 做惡夢, 发青暝
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    评论员对巫巫兹拉的声音作出了各种各样的描述:除了「烦人」、「像魔鬼一般」之外,还把它比作「一群嘈吵的大象」、「一群嗡嗡狂叫的蝗虫」、「一只准备给屠宰的山羊」、「一个装满发狂的蜜蜂的巨大蜂巢」、「一只吃了摇头丸的鸭子」等等。
    評論員對巫巫茲拉的聲音作出了各種各樣的描述:除了「煩人」、「像魔鬼一般」之外,還把它比作「一群嘈吵的大象」、「一群嗡嗡狂叫的蝗蟲」、「一隻準備給屠宰的山羊」、「一個裝滿發狂的蜜蜂的巨大蜂巢」、「一隻吃了搖頭丸的鴨子」等等。
    píng lùn yuán duì wū wū zī lā de shēng yīn zuò chū le gè zhǒng gè yàng de miáo shù : chú le 「 fán rén 」、「 xiàng mó guǐ yī bān 」 zhī wài , hái bǎ tā bǐ zuò 「 yī qún cáo chǎo de dà xiàng 」、「 yī qún wēng wēng kuáng jiào de huáng chóng 」、「 yī zhī zhǔn bèi gěi tú zǎi de shān yáng 」、「 yí gè zhuāng mǎn fā kuáng de mì fēng de jù dà fēng cháo 」、「 yī zhī chī le yáo tóu wán de yā zi 」 děng děng 。
    • Commentators have variously described the sound of vuvuzelas as "annoying" and "satanic" and compared it with "a stampede of noisy elephants", "a deafening swarm of locusts", "a goat on the way to slaughter", "a giant hive full of very angry bees", and "a duck on speed".
Examples (粵典–words.hk)
  1. Cantonese
    发狂
    發狂
    faat3 kwong4
    • to turn mad
  2. Cantonese
    佢只狗寻日突然发狂,咬伤咗佢主人。
    佢隻狗尋日突然發狂,咬傷咗佢主人。
    keoi5 zek3 gau2 cam4 jat6 dat6 jin4 faat3 kwong4, ngaau5 soeng1 zo2 keoi5 zyu2 jan4.
    • His dog suddenly went mad yesterday and bit its master.
Examples (Wiktionary)
  1. Mandarin
    发狂
    發狂
    fā kuáng
    • to go mad