疯子 (fēng zi) — madman; lunatic; crazy person

Definition

Examples

• 路上有个疯子在自言自语。
  Lù shang yǒu gè fēng zi zài zì yán zì yǔ.
  There's a madman on the street talking to himself.
• 他高兴得像疯子一样又跳又叫。
  Tā gāo xìng dé xiàng fēng zi yí yàng yòu tiào yòu jiào.
  He was so happy he jumped and shouted like a lunatic.
• 别理那个疯子，他说的都是胡话。
  Bié lǐ nà ge fēng zi, tā shuō de dōu shì hú huà.
  Don't mind that madman—everything he says is nonsense.