JMdict: 1237510

くるう 【くるう】

  1. [v5u,vi] to go mad; to lose one's mind; to go crazy; to go insane
  2. [v5u,vi] to get out of order; to go amiss; to malfunction; to become imprecise
  3. [v5u,vi] to go wrong (of a plan or expectation, etc.); to fall through; to get mixed up
  4. [v5u,vi] to go crazy (over someone or something); to get enthusiastic; to go wild
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Words often seen with this one: (experimental feature)

調子 (104), なんか (19), いる (10)